Search

Your search keyword '"L. Sarchiapone"' showing total 129 results
Start Over Author "L. Sarchiapone"
129 results on '"L. Sarchiapone"'

1. Astrophysics at n_TOF facility

Author

G. Tagliente, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, F. Belloni, E. Berthoumieux, S. Bisterzo, F. Calvino, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M.Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak

Subjects
Astrophysics, r-process., Atomic physics. Constitution and properties of matter, QC170-197
Abstract

The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several GeV, covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross-section required in s-process nucleosynthesis. This contribution gives an overview on the astrophysical program made at n_TOF facility, the results and the implications will be considered.

Published
2009
Full Text
View/download PDF

2. The Laramed project at LNL: 67Cu and 47Sc production for theranostic applications

Author

F. Gramegna, Giovanni Fiorentini, Mario Maggiore, Federico Evangelisti, Giorgio Keppel, Sara Cisternino, Piergiorgio Antonini, Carlos Rossi Alvarez, Gabriele Sciacca, Petra Martini, P. Favaron, Lorenzo Pranovi, Andrea Calore, Hanna Skliarova, L. Sarchiapone, Adriano Duatti, Juan Esposito, Micol Pasquali, Liliana Mou, M. Calderolla, Alessandra Boschi, Gaia Pupillo, and D. Bettoni

Subjects
Proton (rocket family), Engineering, Work (electrical), business.industry, Systems engineering, High current, business, NO
Abstract

The LARAMED project, acronym for LAboratory of RAdioisotopes for MEDicine, is the new research infrastructure being established at the Legnaro National Laboratories (LNL), focused on the production of novel medical radionuclides, actually unavailable for the scientific community. This work presents the recent advancements of the LARAMED laboratories and bunkers in the SPES facility, where the 70-MeV high current proton cyclotron was installed in 2015 to perform not only fundamental nuclear physics studies but also research activities related to medical applications. The latest research outcomes on the production of the theranostic 67Cu and 47Sc radionuclides, obtained thanks to the Italian and international LARAMED network, are also summarized.

Published
2020
Full Text
View/download PDF

3. Status of the SPES Exotic Beam Facility

Author

Mattia Manzolaro, P. Modanese, F. Galtarossa, Alessio Galatà, D. Pedretti, M.F. Moisio, M. Poggi, L. Ferrari, Alberto Andrighetto, T. Marchi, A. Facco, Maurizio Montis, C. Roncolato, Enrico Fagotti, Luca Bellan, J. Bermudez, A. Monetti, P. F. Mastinu, Alessandra Lombardi, L. De Ruvo, Piergiorgio Antonini, Michele Comunian, Marco Bellato, Daniele Scarpa, Davide Marcato, D. Benini, A. Palmieri, Andrea Pisent, M. Calderolla, M. Cavenago, Stefano Pavinato, P. Favaron, G. Bisoffi, Mario Maggiore, F. Gramegna, M. Giacchini, D. Zafiropoulos, Stefano Corradetti, C Baltador, G. Prete, Damiano Bortolato, M. Rossignoli, and L. Sarchiapone

Subjects
Physics, History, Proton, Fission, Cyclotron, Total current, Superconducting accelerator, Computer Science Applications, Education, law.invention, Accelerator Physics, Nuclear physics, Radioactive Ion Beam Facilities, law, Beam (structure)
Abstract

At Legnaro National Laboratories of INFN is under construction a Rare Isotope Facility called "Selective Production of Exotic Species" (SPES) based on a 35-70 MeV proton cyclotron, able to deliver two beams with a total current up to 0.75 mA, an ISOL fission target station and an existing ALPI superconducting accelerator as a post accelerator (up to 10 MeV/u for A/q=7). The paper will cover notably: the high-resolution mass separator, the CW RFQ (80 MHz, 727 keV/u, with internal bunching), the 1+ low energy transfer line and the injection line from Charge Breeder to ALPI under installation., Proceedings of the 14th Int. Conf. on Heavy Ion Accelerator Technology, HIAT2018, Lanzhou, China

Published
2019
Full Text
View/download PDF

4. Progress in the design and construction of SPES at INFN-LNL

Author

Mattia Manzolaro, Mario Maggiore, J. Vasquez, A.M. Porcellato, G. Bisoffi, V. Andreev, D. Zafiropoulos, M. Rossignoli, P. Favaron, Marco Bellato, Michele Comunian, Enrico Fagotti, Stefano Corradetti, Damiano Bortolato, L. Sarchiapone, L. Ferrari, P. Modanese, Alberto Andrighetto, F. Gramegna, M. Giacchini, Daniele Scarpa, A. Monetti, M.F. Moisio, M. Poggi, A. Facco, G. Prete, A. Palmieri, Alessio Galatà, M. Calderolla, L. Bellan, A. Russo, Alessandra Lombardi, C. Roncolato, M. Gulmini, A. Pisent, and S. Canella

Subjects
Fission, Nuclear and High Energy Physics, Wien filter, Ion beam, ISOL, Linac, 010308 nuclear & particles physics, Chemistry, Cyclotron, Cyclotron resonance, 01 natural sciences, Electron cyclotron resonance, Linear particle accelerator, law.invention, Nuclear physics, law, 0103 physical sciences, Physics::Accelerator Physics, Neutron, 010306 general physics, Instrumentation, Beam (structure), Exotic beam
Abstract

INFN-LNL is constructing an ISOL (Isotope Separation On Line) facility delivering neutron rich ion beams at 10 A MeV or beyond, making use of the linear accelerator ALPI as the secondary accelerator. The facility includes a direct ISOL target based on UC x and able to reach 10 13 fissions/s. In parallel, an applied physics facility will be developed, with applications in medicine and neutron production. The SPES project is a national facility, approved and funded. Commissioning with the first exotic species is expected in 2019. The primary accelerator is a commercial cyclotron, which will send a 40 MeV, 200 μA proton beam onto an UC x target, connected to SIS, PIS and LIS ion sources. The extracted beam is purified through a Low Resolution Mass Separator (LMRS, i.e. a Wien filter and a dispersive dipole), a beam cooler and a High Resolution Mass Separator (HRMS) and sent to an ECR charge breeder to boost the exotic beam charge state. The highly charged exotic beam is further separated in a MRMS (Medium Resolution Mass Separator) and injected into a 100% duty cycle RFQ and into the existing superconducting linac ALPI, which will be refurbished and upgraded to be an efficient exotic beam accelerator. The upgrade of ALPI will give ∼10 A MeV energy to 132 Sn 19+ , taken as the reference ion beam. The paper presents the status of the design and construction of the SPES facility.

Published
2016
Full Text
View/download PDF

5. The SPES facility at Legnaro National Laboratories

Author

A. Vescovo, Michele Comunian, Juan Esposito, C. De Martinis, R. Pegoraro, G. Bisoffi, D. Fabris, E. Fioretto, G. Benzoni, F. Gramegna, G. de Angelis, V. Conte, M. Giacchini, M. Lollo, Mattia Manzolaro, Alessandra Lombardi, M. Cinausero, D. Zafiropoulos, P. De Ruvo, M. Rossignoli, Damiano Bortolato, F. Pasquato, J. J. Valiente Dobon, C. Roncolato, N. Ciatara, F. Gelain, S. Canella, Stefano Pavinato, D. Pedretti, A. Calore, J. Bermudez, Enrico Fagotti, L. Pranovi, M. Ballan, D. Benini, Stefano Corradetti, S. Carturan, T. Marchi, P. F. Mastinu, D. Giora, A. Gottardo, P. Favaron, M. Poggi, Daniele Scarpa, Marco Bellato, Mario Maggiore, Alberto Andrighetto, D. Conventi, A. Monetti, L. Costa, M. Gulmini, Alessio Galatà, G. Prete, D. Maniero, L. Sarchiapone, V. Volpe, Luca Bellan, Francesca Borgna, P. Cocconi, A. Cogo, Piergiorgio Antonini, and Andrea Pisent

Subjects
Physics, History, Computer Science Applications, Education
Abstract

Worldwide efforts to tackle the nature of exotic nuclei comprise the construction of new-generation Radioactive Ion Beam facilities. The Italian community is deeply involved in the process and the construction of SPES at Legnaro National Laboratories (INFN) is progressing. This contribution describes the layout of SPES in all its flavours, from Nuclear Physics to Applications in Nuclear Medicine and Neutron Physics. In particular, the status of the SPES-β ISOL facility, together with some of the relevant physics cases and the associated equipment are described.

Published
2020
Full Text
View/download PDF

6. LARAMED: A Laboratory for Radioisotopes of Medical Interest

Author

Juan Esposito, Mario Maggiore, Hanna Skliarova, L. Sarchiapone, Giorgio Keppel, Sara Cisternino, Adriano Duatti, Liliana Mou, Giovanni Fiorentini, Gabriele Sciacca, D. Bettoni, Piergiorgio Antonini, M. Calderolla, Augusto Lombardi, P. Favaron, Petra Martini, Micol Pasquali, Alessandra Boschi, Gaia Pupillo, Carlos Rossi Alvarez, and Lorenzo Pranovi

Subjects
Engineering, Letter, Pharmaceutical Science, 010403 inorganic & nuclear chemistry, 01 natural sciences, 030218 nuclear medicine & medical imaging, Analytical Chemistry, NO, lcsh:QD241-441, 03 medical and health sciences, 0302 clinical medicine, lcsh:Organic chemistry, Drug Discovery, Humans, High current, Physical and Theoretical Chemistry, High potential, radiopharmaceuticals, Radioisotopes, Cyclotrons, medical radioisotopes, radiopharmaceuticals, targets, business.industry, Research, Organic Chemistry, Cyclotrons, 0104 chemical sciences, Engineering management, Chemistry (miscellaneous), medical radioisotopes, Molecular Medicine, targets, Health Facilities, Nuclear Medicine, Laboratories, business
Abstract

The widespread availability of novel radioactive isotopes showing nuclear characteristics suitable for diagnostic and therapeutic applications in nuclear medicine (NM) has experienced a great development in the last years, particularly as a result of key advancements of cyclotron-based radioisotope production technologies. At Legnaro National Laboratories of the National Institute of Nuclear Physics (LNL-INFN), Italy, a 70-MeV high current cyclotron has been recently installed. This cyclotron will be dedicated not only to pursuing fundamental nuclear physics studies, but also to research related to other scientific fields with an emphasis on medical applications. LARAMED project was established a few years ago at LNL-INFN as a new research line aimed at exploiting the scientific power of nuclear physics for developing innovative applications to medicine. The goal of this program is to elect LNL as a worldwide recognized hub for the development of production methods of novel medical radionuclides, still unavailable for the scientific and clinical community. Although the research facility is yet to become fully operative, the LARAMED team has already started working on the cyclotron production of conventional medical radionuclides, such as Tc-99m, and on emerging radionuclides of high potential medical interest, such as Cu-67, Sc-47, and Mn-52.

Published
2018

7. Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility

Author

D. Karadimos, R. Vlastou, K. Ioannidis, P. Demetriou, M. Diakaki, V. Vlachoudis, P. Pavlopoulos, V. Konovalov, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano Ott, R. Capote, A. C. de, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, S. David, R. Dolfini, C. Domingo Pardo, A. Dorochenko, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fuji, W. Furman, I. Goncalves, R. Gallino, P. Cennini, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karamanis, M. Kerveno, V. Ketlerov, P. Koehler, D. Kolokolov, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, L. Perrot, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, M. Sedysheva, K. Stamoulis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, A. Tsinganis, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, F. Voss, H. Wendler, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, D. Karadimo, R. Vlastou, K. Ioannidi, P. Demetriou, M. Diakaki, V. Vlachoudi, P. Pavlopoulo, V. Konovalov, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, A. C. de, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, S. David, R. Dolfini, C. Domingo-Pardo, A. Dorochenko, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fuji, W. Furman, I. Goncalve, R. Gallino, P. Cennini, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karamani, M. Kerveno, V. Ketlerov, P. Koehler, D. Kolokolov, M. Krticka, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, L. Perrot, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, M. Sedysheva, K. Stamouli, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, A. Tsingani, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, F. Vo, H. Wendler, M. Wiescher, and K. Wisshak

Subjects
MINOR ACTINIDES TRANSMUTATIONS, Nuclear Experiment, NEUTRON TIME OF FLIGHT, NEUTRON INDUCED FISSION
Abstract

The neutron-induced fission cross section of U234 has been measured at the CERN n_TOF facility relative to the standard fission cross section of U235 from 20 keV to 1.4 MeV and of U238 from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n_TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to β-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the talys code with model parameters tuned to fairly reproduce the experimental data.

Published
2014

8. Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN

Author

E. Mendoza, D. Cano Ott, C. Guerrero, E. Berthoumieux, U. Abbondanno, G. Aerts, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, J. Balibrea, P. Baumann, F. Becvar, F. Belloni, F. Calvino, M. Calviani, R. Capote, C. Carrapico, A. C. de, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, R. Dolfini, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, S. Isaev, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karadimos, D. Karamanis, V. Ketlerov, M. Kerveno, P. Koehler, V. Konovalov, E. Kossionides, M. Krticka, C. Lampoudis, H. Leeb, A. Lindote, S. L. Meo, I. Lopes, R. Lossito, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, T. Martinez, MASSIMI, CRISTIAN, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, VANNINI, GIANNI, P. Vaz, A. Ventura, D. Villamarin, M. C. Vicente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, E. Mendoza, D. Cano-Ott, C. Guerrero, E. Berthoumieux, U. Abbondanno, G. Aert, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, J. Balibrea, P. Baumann, F. Becvar, F. Belloni, F. Calvino, M. Calviani, R. Capote, C. Carrapico, A. C. de, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karadimo, D. Karamani, V. Ketlerov, M. Kerveno, P. Koehler, V. Konovalov, E. Kossionide, M. Krticka, C. Lampoudi, H. Leeb, A. Lindote, S. L. Meo, I. Lope, R. Lossito, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vicente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, and K. Wisshak

Subjects
RADIATIVE NEUTRON CAPTURE, NEUTRON TIME OF FLIGHT
Abstract

Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the Am243(n,γ) cross section uncertainty. Method: The Am243(n,γ) cross section has been measured at the n-TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The Am243(n,γ) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the Am243(n,γ) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries. Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the Am243(n,γ) cross section uncertainty. Method: The Am243(n,γ) cross section has been measured at the n-TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The Am243(n,γ) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the Am243(n,γ) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.

Published
2014

9. Neutron-induced fission cross section ofNp237in the keV to MeV range at the CERN n_TOF facility

Author

L. Sarchiapone, S. Andriamonje, G. Cortes, J. Marganiec, R. C. Haight, P. E. Koehler, H. Álvarez, Masayuki Igashira, K. Ioannidis, M. Oshima, C. Lamboudis, J. L. Tain, C. Paradela, E. Chiaveri, P. F. Mastinu, A. Dorochenko, J. Andrzejewski, G. Aerts, J. Cox, A. J. M. Plompen, Isabel Lopes, B. Haas, Matthias Heil, J. Pancin, E. Skordis, L. Audouin, F. Voss, P. Cennini, S. David, Roberto Capote, P.A. Assimakopoulos, Thomas Rauscher, F. Neves, P. M. Milazzo, A. Tsinganis, Y. Kadi, G. Tagliente, I. Duran, H. Frais-Koelbl, Carlos Guerrero, U. Abbondanno, M. Mosconi, P. Pavlopoulos, D. Karadimos, Nicola Colonna, C. Rubbia, M. Kokkoris, Michael Wiescher, V. Konovalov, F. Bečvář, Heinz Oberhummer, S. O'Brien, E. González-Romero, Isabel S. Gonçalves, K. C. Stamoulis, S. Marrone, W. Dridi, I. Savvidis, J. Salgado, D. Cano-Ott, Marco Calviani, M. Diakaki, A. Poch, Vasilis Vlachoudis, A. Lindote, M. Sedysheva, R. Terlizzi, A. Goverdovski, M. Kerveno, Rene Reifarth, E. Griesmayer, V. Ketlerov, A. Plukis, F. Alvarez-Velarde, A. Carrillo de Albornoz, C. Papadopoulos, M. Embid-Segura, L. Ferrant, L. Tavora, K. Fuji, Gerald Badurek, F. Käppeler, Paraskevi Demetriou, L. Fitzpatrick, F. Gramegna, Ralf Plag, R. Dolfini, A. Pavlik, J. M. Quesada, C. Eleftheriadis, M. Rosetti, C. Pretel, Manuel Lozano, C. Domingo-Pardo, L. Tassan-Got, M. C. Vincente, D. Villamarin, P. Rullhusen, M. Krtička, F. Calviño, W.I. Furman, L. Perrot, Corrie S. Moreau, R. Ferreira-Marques, S. Lukic, V. Chepel, A. Herrera-Martinez, N. Patronis, G. Rudolf, L. Marques, P. Vaz, Arnaud Ferrari, Aaron Couture, P. Baumann, Alberto Mengoni, S. Isaev, A. Ventura, R. Vlastou, E. Berthoumieux, G. Vannini, R. Gallino, K. Wisshak, D. Karamanis, H. Wendler, D. Kolokolov, H. Leeb, C. Stephan, F. Gunsing, Cristian Massimi, and E. Jericha

Subjects
Physics, Large Hadron Collider, 010308 nuclear & particles physics, Fission, Model parameters, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Homogeneity (physics), Ionization chamber, Neutron cross section, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics, Spectroscopy
Abstract

The neutron-induced fission cross section of Np237 was experimentally determined at the high-resolution and high-intensity facility n-TOF, at CERN, in the energy range 100 keV to 9 MeV, using the U235(n,f) and U238(n,f) cross section standards below and above 2 MeV, respectively. A fast ionization chamber was used in order to detect the fission fragments from the reactions and the targets were characterized as far as their mass and homogeneity are concerned by means of α spectroscopy and Rutherford backscattering spectroscopy respectively. Theoretical calculations within the Hauser-Feshbach formalism have been performed, employing the empire code, and the model parameters were tuned in order to successfully reproduce the experimental fission cross-sectional data and simultaneously all the competing reaction channels.

Published
2016
Full Text
View/download PDF

10. Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN -€“ n_TOF

Author

S. Valenta, N. Colonna, Carlos Guerrero, M. P. W. Chin, P. Zugec, Marco Calviani, V. Ketlerov, F. Roman, C. Le Naour, Masayuki Igashira, V. Bécares, J. Salgado, N. Patronis, K. Fraval, E. Leal-Cidoncha, G. Cortes, C. Eleftheriadis, Roberto Capote, J. Pancin, L. Cosentino, W. Mondelaers, Thomas Rauscher, A. K. Saxena, Arnaud Ferrari, G. Rudolf, P. Rullhusen, Y. Kadi, J. Marganiec, D. Karadimos, S. Andriamonje, W.I. Furman, M. Embid-Segura, J. Billowes, D. Cano-Ott, C. Santos, S. Heinitz, M. Diakaki, B. Berthier, M. B. Gómez-Hornillos, E. González-Romero, E. Chiaveri, P. Cennini, Christoph Langer, F. Cerutti, M. Kerveno, L. Sarchiapone, Michael Heil, M. J. Vermeulen, L. Plukis, K. Fujii, G. Giubrone, M. Mosconi, A. R. García, M. Wiesher, I. F. Gonçalves, P. F. Mastinu, V. Variale, Roberto Versaci, W. Dridi, M. Brugger, T. Ware, F. Voss, S. O'Brien, E. Mendoza, E. Jericha, Paolo Finocchiaro, Dorothea Schumann, Diego Tarrio, Rene Reifarth, F. Kaeppeler, Stefan Schmidt, P. Pavlopoulos, Javier Praena, S. Lo Meo, E. Griesmayer, S. David, Srinivasan Ganesan, R. Terlizzi, P. Baumann, Vittorio Boccone, D. G. Jenkins, J. M. Quesada, Peter Schillebeeckx, L. Tassan-Got, A. Manousos, D. Bosnar, G. Tagliente, F. Mingrone, J. Andrzejewski, G. Aerts, P. Gurusamy, Ralf Plag, M. Kokkoris, Alberto Mengoni, M. Krtička, F. Calviño, M. A. Cortés-Giraldo, L. Ferrant, I. Duran, H. Álvarez, J. L. Tain, C. Weiß, V. Konovalov, C. Pretel, Niko Kivel, D. Villamarin, L. Perrot, T. Martinez, C. Rubbia, S. Marrone, S. Altstadt, P. Vaz, Alberto Ventura, P. M. Milazzo, Aaron Couture, C. Carrapiço, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, G. Vannini, A. Musumarra, Marco T. Pigni, I. Dillmann, D. Karamanis, T. J. Wright, M. C. Vincente, Christoph A. Stephan, S. Isaev, R. C. Haight, C. Paradela, L. Audouin, R. Sarmento, R. Vlastou, E. Berthoumieux, M. Mastromarco, L. Tavora, Massimo Barbagallo, Anton Wallner, E. Dupont, A. J. M. Plompen, James L. Cox, Corrie S. Moreau, Jeri Kroll, C. Lederer, Maria Victoria Lozano, A. Riego, S. Walter, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, Roberto Losito, F. Gramegna, F. Belloni, F. Gunsing, A. Poch, Cristian Massimi, Rugard Dressler, K. Wisshak, Mario Weigand, F. Becvar, M. Mirea, A. Tsinganis, H. Leeb, J. Perkowski, L.S. Leong, Vasilis Vlachoudis, Serot, O., Diakaki, M., Audouin, L., Berthoumieux, E., Calviani, M., Colonna, N., Dupont, E., Duran, I., Gunsing, F., Leal-Cidoncha, E., Le Naour, C., Leong, L.S., Mastromarco, M., Paradela, C., Tarrio, D., Tassan-Got, L., Aerts, G., Altstadt, S., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Becares, V., Becvar, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calvino, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortes, G., Cortes-Giraldo, M.A., Cosentino, L., Couture, A., Cox, J., David, S., Dillmann, I., Domingo-Pardo, C., Dressler, R., Dridi, W., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Finocchiaro, P., Fraval, K., Fujii, K., Furman, W., Ganesan, S., Garcia, A.R., Giubrone, G., Gomez-Hornillos, M.B., Goncalves, I.F., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D.G., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krticka, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Lo Meo, S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martinez, T., Marrone, S., Massimi, C., Mastinu, P., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondelaers, W., Moreau, C., Mosconi, M., Musumarra, A., O’Brien, S., Pancin, J., Patronis, N., Pavlik, A., Pavlopoulos, P., Perkowski, J., Perrot, L., Pigni, M.T., Plag, R., Plompen, A., Plukis, L., Poch, A., Pretel, C., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rudolf, G., Rubbia, C., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Stephan, C., Tagliente, G., Tain, J.L., Tavora, L., Terlizzi, R., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Wallner, A., Walter, S., Ware, T., Weigand, M., Weiß, C., Wiesher, M., Wisshak, K., Wright, T., Zugec, P., Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group

Subjects
Nuclear reaction, Fission, QC1-999, Nuclear Theory, Nuclear physics, Mechanical engineering, U238, neutron fission, 7. Clean energy, 01 natural sciences, Fissió nuclear, ANGULAR-DISTRIBUTION, Subatomär fysik, Cross section (physics), 0103 physical sciences, Subatomic Physics, Neutron, 010306 general physics, Nuclear Experiment, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Large Hadron Collider, 010308 nuclear & particles physics, Nuclear fission, Física nuclear
Abstract

The U-238 fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The U-238 fission cross section has been measured relative to the U-235 fission cross section at CERN - n_TOF with different detection systems. These datasets have been collected and suitably combined to increase the counting statistics in the threshold region from about 300 keV up to 3 MeV. The results are compared with other experimental data, evaluated libraries, and the IAEA standards.

Published
2016

11. Status of the SPES project, a new tool for fundamental and apply science studies with exotic ion beams at LNL

Author

M. Rossignoli, Luciano Calabretta, A. Calore, Stefano Corradetti, Mario Maggiore, E. Boratto, D. Benini, G.F. Prete, P. Giacomazzi, F. Gelain, Michele Comunian, F. Pasquato, D. R. Napoli, A. Mozzi, Mattia Manzolaro, D. Zafiropoulos, G. Bisoffi, M. Calderolla, C. Gobbi, D. Pedretti, A. Russo, M.F. Moisio, G. Vivian, M. Cinausero, P. De Ruvo, M. Lollo, Alessandra Lombardi, M. Poggi, E. Visentin, C. Roncolato, Luca Bellan, P. Modanese, L. Ferrari, J. Bermudez, Daniele Scarpa, Alberto Andrighetto, Piergiorgio Antonini, Marco Bellato, M. Giacchini, R. Silingardi, A. Palmieri, S. Carturan, F. Gramegna, D. Campo, G. de Angelis, R. Pegoraro, Juan Esposito, Alessio Galatà, L. Pranovi, L. Sarchiapone, A. Monetti, M. Gulmini, G. Prete, Damiano Bortolato, J. J. Valiente Dobon, R. Michinelli, and Andrea Pisent

Subjects
Nuclear reaction, Engineering, Proton, Fission, business.industry, Cyclotron, Nuclear structure, law.invention, Ion, Nuclear physics, law, Nucleon, business, Beam (structure)
Abstract

SPES, a new accelerator facility for both the production of exotic ion beams and radio-pharmaceuticals, is presently being installed at the Laboratori Nazionali di Legnaro in Italy (LNL). The new cyclotron, which will provide high intensity proton beams for the production of the rare isotopes, has been installed and is now in the commissioning phase. We present here the status of the part of the project devoted to the production and acceleration of fission fragments created in the interaction of an intense proton beam on a production target of UCx. The expected SPES radioactive beams intensities, their quality and their maximum energies (up to 11 MeV/A for A=130) will permit to perform forefront research in nuclear structure and nuclear dynamics far from the stability valley. Another low energy section of the facility is foreseen for new and challenging research, both in the nuclear physics and in the material science frameworks.

Published
2016
Full Text
View/download PDF

12. 237Np(n,f) Cross Section: New Data and Present Status

Author

B. Haas, I. Savvidis, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, G. Cortes, Martin Heil, P. Cennini, S. David, D. Tarrío, D. Cano-Ott, W. Dridi, Roberto Capote, P.A. Assimakopoulos, M. Mosconi, S. O'Brien, G. Tagliente, Marco Calviani, M. Oshima, R. Terlizzi, Corrie S. Moreau, S. Walter, J. Andrzejewski, L. Tavora, Ralf Plag, F. Calviño, H. Leeb, J. Salgado, Isabel Lopes, P. Rullhusen, J. Marganiec, S. Andriamonje, A. Poch, C. Santos, E. Kossionides, E. Chiaveri, K. Wisshak, P. F. Mastinu, A. J. M. Plompen, Christoph A. Stephan, J. Pancin, A. Herrera-Martinez, N. Patronis, A. Ventura, F. Gunsing, D. Trubert, L. Ferrant, Cristian Massimi, Javier Praena, I. Duran, Arnaud Ferrari, G. Aerts, M. Dahlfors, Y. Kadi, R. C. Haight, M. Embid-Segura, P. Vaz, Rene Reifarth, H. Álvarez, S. Lukic, D. Villamarin, Alberto Mengoni, James L. Cox, C. Paradela, M. C. Vicente, C. Eleftheriadis, Thomas Rauscher, Aaron Couture, M. Krtička, S. Isaev, J. M. Quesada, Manuel Lozano, L. Tassan-Got, Carlos Guerrero, U. Abbondanno, J. L. Tain, L. Audouin, B. Berthier, P. E. Koehler, L. Sarchiapone, D. Karadimos, R. Ferreira-Marques, T. Martinez, Heinz Oberhummer, E. Jericha, C. Le Naour, E. González-Romero, P. Pavlopoulos, Michael Wiescher, F. Voss, F. Becvar, W.I. Furman, F. Alvarez-Velarde, R. Vlastou, Marco T. Pigni, Nicola Colonna, Masayuki Igashira, E. Berthoumieux, Gerald Badurek, A. Plukis, Vasilis Vlachoudis, C. A. Papachristodoulou, F. Gramegna, K. Fujii, C. T. Papadopoulos, A. Lindote, C. Rubbia, C. Pretel, F. Käppeler, Isabel S. Gonçalves, S. Marrone, M. Kerveno, F. Neves, P. M. Milazzo, L. Perrot, V. Chepel, G. Rudolf, P. Baumann, G. Vannini, C. Carrapiço, D. Karamanis, I. Dillmann, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Paradela C., Tassan-Got L., Audouin L., Berthier B., Ferrant L., Isaev S., Naour C. Le, Stephan C., Trubert D., David S., Duran I., Tarrio D., Alvarez H., Abbondanno U., Fujii K., Milazzo P. M., Moreau C., Aerts G., Alvarez-Velarde F., Cano-Ott D., Embid-Segura M., Gonzalez-Romero E., Guerrero C., Martinez T., Villamarin D., Vicente M. C., Andriamonje S., Berthoumieux E., Dridi W., Gunsing F., Pancin J., Perrot L., Plukis A., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Badurek G., Jericha E., Leeb H., Oberhummer H., Pigni M. T., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Cortes G., Poch A., Pretel C., Calviani M., Gramegna F., Mastinu P., Praena J., Capote R., Carrapico C., Cennini P., Chiaveri E., Dahlfors M., Ferrari A., Herrera-Martinez A., Kadi Y., Sarchiapone L., Vlachoudis V., Chepel V., Ferreira-Marques R., Lindote A., Lopes I., Neves F., Colonna N., Tagliente G., Terlizzi R., Couture A., Cox J., Marrone S., Obrien S., Wiescher M., Dillmann I., Heil M., Kappeler F., Mosconi M., Voss F., Walter S., Wisshak K., Domingo-Pardo C., Plag R., Plompen A., Tain J. L., Eleftheriadis C., Savvidis I., Furman W., Goncalves I., Salgado J., Santos C., Tavora L., Vaz P., Haas B., Haight R., Reifarth R., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Pavlik A., Pavlopoulos P., Vlastou R., Rauscher T., Rubbia C., Rullhusen P., Ventura A., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, neutron fission cross section, Np-237, Fission, Nuclear data, General Physics and Astronomy, Nuclear energy, 020206 networking & telecommunications, Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear physics, TIME-OF-FLIGHT, Cross section (physics), Fusion reactors, Reactors nuclears, n TOF experiment, 0202 electrical engineering, electronic engineering, information engineering, Energia nuclear, 020201 artificial intelligence & image processing, Energy (signal processing), Neutron-induced ssion reactions
Abstract

In this document, we present the nal result obtained at the n TOF experiment for the neutron- induced ssion cross section of the 237Np, from the ssion threshold up to 1 GeV. The method applied to get this result is brie y discussed. n TOF data are compared to the last experimental measurements using other TOF facilities or the surrogate method, reported experiments performed with monoenergetic sources and the FISCAL systematic, including a discussion about the existing discrepancies.

Published
2011
Full Text
View/download PDF

13. High-energy Neutron-induced Fission Cross Sections of Natural Lead and Bismuth-209

Author

D. Tarrio, L. Tassan-Got, L. Audouin, B. Berthier, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Trubert, S. David, I. Duran, C. Paradela, H. Alvarez, U. Abbondanno, K. Fujii, P. M. Milazzo, C. Moreau, G. Aerts, F. Alvarez-Velarde, D. Cano-Ott, M. Embid-Segura, E. Gonzalez-Romero, C. Guerrero, T. Martinez, D. Villamarin, M. C. Vicente, S. Andriamonje, E. Berthoumieux, W. Dridi, F. Gunsig, J. Pancin, L. Perrot, A. Plukis, J. Andrzejewski, J. Marganiec, P. Assimakopoulos, D. Karadimos, D. Karamanis, C. Papachristodoulou, N. Patronis, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, M. T. Pigni, P. Baumann, M. Kerveno, S. Lukic, G. Rudolf, F. Becvar, M. Krticka, F. Calvino, G. Cortes, A. Poch, C. Pretel, M. Calviani, F. Gramegna, P. Mastinu, J. Praena, R. Capote, C. Carrapico, P. Cennini, E. Chiaveri, M. Dahlfors, A. Ferrari, I. Goncalves, A. Herrera-Martinez, Y. Kadi, L. Sarchiapone, V. Vlachoudis, V. Chepel, R. Ferreira-Marques, A. Lindote, I. Lopes, F. Neves, N. Colonna, G. Tagliente, R. Terlizzi, A. Couture, J. Cox, S. Marrone, S. O'brien, M. Wiescher, I. Dillmann, M. Heil, F. Kappeler, M. Mosconi, F. Voss, S. Walter, K. Wisshak, C. Domingo-Pardo, R. Plag, A. Plompen, J. L. Tain, C. Eleftheriadis, I. Savvidis, W. Furman, B. Haas, R. Haight, R. Reifarth, M. Igashira, P. Koehler, E. Kossionides, C. Lampoudis, M. Lozano, J. Quesada, C. Massimi, G. Vannini, A. Mengoni, M. Oshima, C. Papadopoulos, A. Pavlik, P. Pavlopoulos, R. Vlastou, T. Rauscher, C. Rubbia, P. Rullhusen, J. Salgado, C. Santos, L. Tavora, P. Vaz, A. Ventura, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Tarrno D., Tassan-Got L., Audouin L., Berthier B., Ferrant L., Isaev S., Naour C. Le, Stephan C., Trubert D., David S., Duran I., Paradela C., Alvarez H., Abbondanno U., Fujii K., Milazzo P. M., Moreau C., Aerts G., Alvarez-Velarde F., Cano-Ott D., Embid-Segura M., Gonzalez-Romero E., Guerrero C., Martinez T., Villamarin D., Vicente M. C., Andriamonje S., Berthoumieux E., Dridi W., Gunsig F., Pancin J., Perrot L., Plukis A., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Badurek G., Jericha E., Leeb H., Oberhummer H., Pigni M. T., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Cortes G., Poch A., Pretel C., Calviani M., Gramegna F., Mastinu P., Praena J., Capote R., Carrapico C., Cennini P., Chiaveri E., Dahlfors M., Ferrari A., Goncalves I., Herrera-Martinez A., Kadi Y., Sarchiapone L., Vlachoudis V., Chepel V., Ferreira-Marques R., Lindote A., Lopes I., Neves F., Colonna N., Tagliente G., Terlizzi R., Couture A., Cox J., Marrone S., Obrien S., Wiescher M., Dillmann I., Heil M., Kappeler F., Mosconi M., Voss F., Walter S., Wisshak K., Domingo-Pardo C., Plag R., Plompen A., Tain J. L., Eleftheriadis C., Savvidis I., Furman W., Haas B., Haight R., Reifarth R., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Pavlik A., Pavlopoulos P., Vlastou R., Rauscher T., Rubbia C., Rullhusen P., Salgado J., Santos C., Tavora L., Vaz P., and Ventura A.

Subjects
Pb-nat(n, Fission, Nuclear data, Nuclear Theory, General Physics and Astronomy, chemistry.chemical_element, f), Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Bismuth, Nuclear physics, Nuclear reactors, Reactors nuclears, Neutron, Spallation, Nuclear Experiment, EMERGING NUCLEAR TECHNOLOGIES, Neutron-induced ssion reactions, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Cluster decay, Nuclear energy, Bi-209(n, n TOF facility, TIME-OF-FLIGHT, chemistry, Spallation neutron source, Energia nuclear, Neutron source, PPAC fission detector, Spallation Neutron Source
Abstract

The CERN Neutron Time-Of-Flight (n-TOF) facility is well suited to measure small neutron-induced fission cross sections, as those of subactinides. The cross section ratios of {sup nat}Pb and {sup 209}Bi relative to {sup 235}U and {sup 238}U were measured using PPAC detectors. The fragment coincidence method allows to unambiguously identify the fission events. The present experiment provides the first results for neutron-induced fission up to 1 GeV for {sup nat}Pb and {sup 209}Bi. A good agreement with previous experimental data below 200 MeV is shown. The comparison with proton-induced fission indicates that the limiting regime where neutron-induced and proton-induced fission reach equal cross section is close to 1 GeV.

Published
2011
Full Text
View/download PDF

14. LHC Accelerator Design Studies on the Example of Passive Absorbers

Author

Arnaud Ferrari, F Cerutti, L. Lari, L. Sarchiapone, M. Brugger, Vasilis Vlachoudis, Stefan Roesler, and M. Mauri

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Field (physics), Nuclear engineering, Monte Carlo method, Detector, Particle accelerator, Condensed Matter Physics, Collimated light, law.invention, Nuclear physics, Nuclear Energy and Engineering, law, Electromagnetic shielding, Physics::Accelerator Physics, Beam (structure)
Abstract

In the course of the design of the CERN Large Hadron Collider collimation regions as well as of other locations where important beam losses are expected and that contain critical accelerator elements, the FLUKA Monte Carlo code is extensively used. The field of applications spans from energy deposition calculations, studies of material damage, and detector studies to shielding design and activation studies. Using the design of the passive absorbers as an example, this paper illustrates the simulation approach, defines involved critical quantities, and confronts the need for simplified and detailed simulations.

Published
2009
Full Text
View/download PDF

15. FLUKA Monte Carlo simulations and benchmark measurements for the LHC beam loss monitors

Author

Daniel B. Kramer, Vasilis Vlachoudis, L. Sarchiapone, M. Stockner, M. Brugger, and Bernd Dehning

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Electromagnet, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Monte Carlo method, Superconducting magnet, Betatron, law.invention, Nuclear physics, law, Electrical equipment, Measuring instrument, Physics::Accelerator Physics, Instrumentation, Beam (structure)
Abstract

One of the crucial elements in terms of machine protection for CERN's Large Hadron Collider (LHC) is its beam loss monitoring (BLM) system. On-line loss measurements must prevent the superconducting magnets from quenching and protect the machine components from damages due to unforeseen critical beam losses. In order to ensure the BLM's design quality, in the final design phase of the LHC detailed FLUKA Monte Carlo simulations were performed for the betatron collimation insertion. In addition, benchmark measurements were carried out with LHC type BLMs installed at the CERN-EU high-energy Reference Field facility (CERF). This paper presents results of FLUKA calculations performed for BLMs installed in the collimation region, compares the results of the CERF measurement with FLUKA simulations and evaluates related uncertainties. This, together with the fact that the CERF source spectra at the respective BLM locations are comparable with those at the LHC, allows assessing the sensitivity of the performed LHC design studies.

Published
2007
Full Text
View/download PDF

16. Neutron reactions and nuclear cosmo-chronology

Author

I. Goncalves, D. Karamanis, L. Ferrant, Thomas Rauscher, L. Fitzpatrick, D. Karadimos, M. Dahlfors, F. Gramegna, P. Vaz, P. Cennini, M. Rosetti, J. Cox, Rene Reifarth, M. C. Vincente, Alberto Ventura, Aaron Couture, Laurent Tassan-Got, P. M. Milazzo, V. Ketlerov, A. Pavlik, P. Pavlopoulos, Ralf Plag, J. M. Quesada, D. Villamarin, C. Lamboudis, J. L. Tain, G. Vannini, M. Oshima, F. Voss, E. Jericha, L. Sarchiapone, M. Mosconi, J. Andrzejewski, W.I. Furman, R. Gallino, Carlo Rubbia, V. Vlachoudis, Nicola Colonna, M. Embid-Segura, C. T. Papadopoulos, A. Lindote, J. Pancin, E. Griesmayer, C. Stephan, S. O'Brien, V. Konovalov, E. Chiaveri, D. Cano-Ott, K. Fujii, H. Alvarez-Pol, R. Vlastou, C. A. Papachristodoulou, R. Terlizzi, B. Haas, Michael Heil, Manuel Lozano, C. Paradela, A. Carrillo de Albornoz, F. Calviño, H. Leeb, S. Marrone, A. J. M. Plompen, I. Dillman, G. Aerts, S. Lukic, L. Tavora, Carlos Guerrero, C. Eleftheriadis, Masayuki Igashira, S. Isaev, U. Abbondanno, E. Kossionides, M. Kerveno, Heinz Oberhummer, G. Rudolf, Yacine Kadi, I. Lopes, G. Cortes, P. Rullhusen, C. Domingo Pardo, R. C. Haight, H. Frais-Koelbl, A. Herrera-Martinez, Alfredo Ferrari, R. Ferreira-Marques, Alberto Mengoni, C. Pretel, N. Patronis, W. Dridi, S. Bisterzo, K. Wisshak, L. Audouin, Roberto Capote, P.A. Assimakopoulos, Michael Wiescher, E. Berthoumieux, F. Neves, S. Walter, H. Wendler, A. Goverdovski, F. Gunsing, F. Alvarez-Velarde, I. Savvidis, Gerald Badurek, R. Dolfini, P. E. Koehler, I. Duran, V. Chepel, P. Baumann, J. Marganiec, S. Andriamonje, P. F. Mastinu, L. Perrot, F. Käppeler, M. Krtička, C. Moreau, J. Salgado, L. Marques, A. Poch, E. Gonzalez-Romero, A. Plukis, F. Bečvář, S. David, G. Tagliente, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pole Universitaire Leonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
stars, Neutron capture, Nuclear and High Energy Physics, Estels -- Estructura, Inelastic scattering, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Stellar cross sections, Cross section (physics), 0103 physical sciences, Stars--Structure, Neutron cross section, Neutron, cross-sections, capture, 010303 astronomy & astrophysics, milky-way, isotopes, Physics, Neutrons, Física [Àrees temàtiques de la UPC], Re/Os cosmo-chronometer, 010308 nuclear & particles physics, stellar cross sections, nucleosynthesis, inelastic scattering, Neutron temperature, re/os cosmo-chronometer, age, 13. Climate action, r-process, Atomic physics, s-process, s process, neutron capture
Abstract

The beta-decay of Re-187 (t(1/2) = 42.3 Gyr) represents a suited cosmo-chronometer for the age of the r-process abundances, since the radiogenic part of the daughter isotope (OS)-O-187 is defined by the difference between the solar Os-187 abundance and s-process contribution to Os-187. The latter component can be determined via the s-process systematics based on the stellar neutron capture cross sections of Os-186 and Os-187. The laboratory cross section of Os-187 requires a significant correction for the effect of the low-lying excited state at 9.75 keV, which is strongly populated under stellar conditions. This theoretical correction can be improved by an experimental cross section for inelastic scattering to the 9.75 keV state. High resolution time-of-flight measurements of (n, gamma) cross sections of (OS)-O-186,187,188 from I eV to I MeV at CERN n-TOF facility are reported. The inferred stellar cross sections differ from previously recommended values. In addition, the inelastic scattering cross section has been measured at 30 keV neutron energy via time-of-flight at the Karlsruhe 3.7 MV Van de Graaff. The implications of these results for the Re/Os clock are discussed. (c) 2007 Elsevier B.V. All rights reserved. ispartof: Progress in Particle and Nuclear Physics vol:59 issue:1 pages:165-173 ispartof: location:ITALY, Erice status: published

Published
2007
Full Text
View/download PDF

17. The SPES Radioactive Ion Beam facility of INFN

Author

Juan Esposito, M. Calderolla, G. de Angelis, S. Zanella, Daniele Scarpa, G. Bisoffi, S. Canella, M. Rigato, Mattia Manzolaro, J. Valiente, L. Piazza, R. Pegoraro, Michele Comunian, M. Giacchini, Alberto Andrighetto, Alessio Galatà, D. Zafiropoulos, P. Favaron, D. Maniero, P. F. Mastinu, A.M. Porcellato, J. Wyss, Mario Maggiore, D. Benini, A. Russo, J. Vasquez, C. Roncolato, J. Bermudez, Andrea Pisent, A. Monetti, L. Sarchiapone, G. Prete, F. Gramegna, G. Bassato, M. Lollo, Alessandra Lombardi, M. Rossignoli, Luciano Calabretta, and Stefano Corradetti

Subjects
Nuclear reaction, History, Materials science, Ion beam, Proton, Fission, Chemistry, Nuclear Theory, Cyclotron, Linear particle accelerator, Computer Science Applications, Education, law.invention, Nuclear physics, law, Physics::Accelerator Physics, Neutron, Nuclear Experiment, Beam (structure)
Abstract

A new Radioactive Ion Beam (RIB) facility (SPES) is presently under construction at the Legnaro National Laboratories of INFN. The SPES facility is based on the ISOL method using an UCx Direct Target able to sustain a power of 10 kW. The primary proton beam is provided by a high current Cyclotron accelerator with energy of 40 MeV and a beam current of 0.2-0.5 mA. Neutron-rich radioactive ions are produced by proton induced fission at an expected fission rate of the order of 1013 fissions per second. After ionization and selection the exotic isotopes are re-accelerated by the ALPI superconducting LINAC at energies of 10A MeV for masses in the region A=130 amu. The expected secondary beam rates are of the order of 107 – 109 pps. Aim of the SPES facility is to deliver high intensity radioactive ion beams of neutron rich nuclei for nuclear physics research as well as to be an interdisciplinary research center for radio-isotopes production for medicine and for neutron beams.

Published
2015

18. High accuracy U-235(n,f) data in the resonance energy region

Author

Carlos Guerrero, U. Abbondanno, I. Dillmann, I. Savvidis, M. Kerveno, C. Lederer, H. Leeb, A. Pavlik, L. Ferrant, F. Gramegna, D. Villamarin, Ralf Plag, I. Duran, A. Goverdovski, F. Gunsing, Christoph A. Stephan, F. Alvarez-Velarde, P. Pavlopoulos, C. Le Naour, M. Embid-Segura, S. David, A. Ventura, Cristian Massimi, P. Rullhusen, Gerald Badurek, Marco Calviani, F. Voss, P. M. Milazzo, G. Tagliente, A. Plukis, S. Lukic, A. Couture, G. Cortes, W.I. Furman, C. Rubbia, S. Isaev, C. Eleftheriadis, R. C. Haight, S. Marrone, K. Fujii, C. Paradela, P. Baumann, L. Perrot, K. Wisshak, J. Salgado, Thomas Rauscher, P. Cennini, A. Poch, Roberto Capote, L. Audouin, M. Krtička, F. Calviño, I. F. Gonçalves, D. Karadimos, R. Vlastou, E. Berthoumieux, V. Chepel, W. Dridi, C. Santos, M.C. Vincente, L. Tavora, M. Mosconi, L. Sarchiapone, E. González-Romero, E. Jericha, G. Aerts, R. Ferreira-Marques, T. Martinez, Rene Reifarth, S. Walter, J. L. Tain, P. E. Koehler, F. Becvar, A. Lindote, Diego Tarrio, J. M. Quesada, L. Tassan-Got, J. Marganiec, Nicola Colonna, S. Andriamonje, C. Carrapiço, R. Terlizzi, C. Weiss, V. Ketlerov, Vasilis Vlachoudis, H. Alvarez-Pol, E. Chiaveri, Javier Praena, P. F. Mastinu, Y. Kadi, C. Pretel, G. Rudolf, B. Berthier, Michael Heil, A. J. M. Plompen, Corrie S. Moreau, C. Lampoudis, C. Domingo-Pardo, M. Dahlfors, M. Wiesher, P. Vaz, D. Cano-Ott, Arnaud Ferrari, Alberto Mengoni, J. Andrzejewski, V. Konovalov, J. Cox, Masayuki Igashira, F. Kaeppeler, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Serot, O., Paradela, C., Duran, I., Tassan-Got, L., Audouin, L., Berthier, B., Isaev, S., Le Naour, C., Stephan, C., Tarrío, D., Abbondanno, U., Aerts, G., Álvarez-Pol, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviño, F., Calviani, M., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Gonçalves, I.F., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Guerrero, C., Gunsing, F., Haight, R., Heil, M., Igashira, M., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Krticka, M., Lampoudis, C., Lederer, C., Leeb, H., Lindote, A., Lukic, S., Marganiec, J., Martinez, T., Marrone, S., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Pancin, S, Pavlik, A., Pavlopoulos, P., Perrot, L., Plag, R., Plompen, A., Plukis, A., Poch, A., Pretel, C., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Tagliente, G., Tain, J.L., Tavora, L., Terlizzi, R., Vaz, P., Ventura, A., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Weiss, C., Wiesher, M., and Wisshak, K.

Subjects
Nuclear reaction, Fission, nTOF, QC1-999, Neutron, 01 natural sciences, Resonance (particle physics), Nuclear physics, Subatomär fysik, Cross section (physics), U235, Ionization, 0103 physical sciences, Subatomic Physics, CERN, ddc:530, 010306 general physics, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Range (particle radiation), Large Hadron Collider, Física [Àrees temàtiques de la UPC], Reaccions nuclears, Cross section, 010308 nuclear & particles physics, Nuclear fission, nuclear technologies, Engineering physics, Física nuclear, Nuclear reactions
Abstract

The $^{235}$U neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce experimental data covering the full region. In this work, we deal with a new analysis of the experimental data obtained with a detection setup based on parallel plate ionization chambers (PPACs) at the CERN n_TOF facility in the range from 1 eV to 10 keV. The relative cross section has been normalised to the IAEA value in the region between 7.8 and 11 eV, which is claimed as well-known. Comparison with the ENDF/B-VII evaluation and the IAEA reference file from 100 eV to 10 keV are provided.

Published
2015

19. The SPES project of INFN: Facility and detectors

Author

D. Zafiropoulos, Mario Maggiore, J. Vasquez, J. Valiente, M. Rossignoli, M. Giacchini, Luciano Calabretta, Michele Comunian, C. Roncolato, F. Gramegna, J. Bermudez, Mattia Manzolaro, J. Wyss, D. Maniero, A. Monetti, M. Lollo, Alessandra Lombardi, P. Favaron, G. Prete, Alessio Galatà, P. F. Mastinu, D. Benini, G. Bisoffi, Stefano Corradetti, R. Pegoraro, A. Russo, Juan Esposito, Alberto Andrighetto, L. Piazza, A.M. Porcellato, G. de Angelis, S. Zanella, Daniele Scarpa, S. Canella, M. Rigato, Andrea Pisent, L. Sarchiapone, G. Bassato, and M. Calderolla

Subjects
Physics, Ion beam, Proton, Fission, QC1-999, Cyclotron, Nuclear Theory, Engineering physics, Linear particle accelerator, Isotope separation, law.invention, Nuclear physics, law, Ionization, Physics::Accelerator Physics, Nuclear Experiment, Beam (structure)
Abstract

The SPES Radioactive Ion Beam facility at INFN-LNL is presently in the construction phase. The facility is based on the Isol (Isotope separation on-line) method with an UCx Direct Target able to sustain a power of 10 kW. The primary proton beam is provided by a high current Cyclotron accelerator with energy of 35-70 MeV and a beam current of 0.2-0.5 mA. Neutron-rich radioactive ions are produced by proton induced Uranium fission at an expected fission rate of the order of 1013 fissions per second. After ionization and selection the exotic isotopes are re-accelerated by the ALPI superconducting Linac at energies of 10A MeV for masses in the region A = 130 amu. The expected secondary beam rates are of the order of 107 - 109 pps. Aim of the SPES project is to provide a facility for high intensity radioactive ion beams for nuclear physics research as well as to develop an interdisciplinary research center based on the cyclotron proton beam.

Published
2015

20. Nuclear Structure Studies with Stable and Radioactive Beams: The SPES radioactive ion beam project

Author

J. Wyss, M. Rossignoli, Luciano Calabretta, Mattia Manzolaro, G. de Angelis, A. Monetti, S. Canella, J. Valiente, Michele Comunian, D. Zafiropoulos, M. Rigato, L. Sarchiapone, Alberto Andrighetto, Stefano Corradetti, G. Bassato, M. Lollo, Alessandra Lombardi, D. Benini, M. Calderolla, A.M. Porcellato, F. Gramegna, A. Russo, G. Bisoffi, Alessio Galatà, S. Zanella, Daniele Scarpa, Andrea Pisent, P. F. Mastinu, P. Favaron, L. Piazza, R. Pegoraro, M. Giacchini, Mario Maggiore, J. Vasquez, C. Roncolato, J. Bermudez, Juan Esposito, D. Maniero, and G. Prete

Subjects
Nuclear reaction, History, Ion beam, Proton, Fission, Chemistry, Nuclear Theory, Cyclotron, Linear particle accelerator, Computer Science Applications, Education, law.invention, Nuclear physics, law, Physics::Accelerator Physics, Neutron, Nuclear Experiment, Beam (structure)
Abstract

A new Radioactive Ion Beam (RIB) facility (SPES) is presently under construction at the Legnaro National Laboratories of INFN. The SPES facility is based on the ISOL method using an UCx Direct Target able to sustain a power of 10 kW. The primary proton beam is provided by a high current Cyclotron accelerator with energy of 35-70 MeV and a beam current of 0.2-0.5 mA. Neutron-rich radioactive ions are produced by proton induced fission on an Uranium target at an expected fission rate of the order of 1013 fissions per second. After ionization and selection the exotic isotopes are re-accelerated by the ALPI superconducting LINAC at energies of 10A MeV for masses in the region A=130 amu. The expected secondary beam rates are of the order of 107 – 109 pps. Aim of the SPES facility is to deliver high intensity radioactive ion beams of neutron rich nuclei for nuclear physics research as well as to be an interdisciplinary research centre for radio-isotopes production for medicine and for neutron beams.

Published
2015

21. Resonance neutron-capture cross sections of stable magnesium isotopes and their astrophysical implications

Author

MASSIMI, CRISTIAN, VANNINI, GIANNI, P. Koehler, S. Bisterzo, N. Colonna, R. Gallino, F. Gunsing, F. Käppeler, G. Lorusso, A. Mengoni, M. Pignatari, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, M. Barbagallo, P. Baumann, F. Bečvář, F. Belloni, M. Bennett, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano Ott, R. Capote, C. Carrapiço, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, R. Dolfini, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, I. Goncalves, E. González Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, F. Herwig, R. Hirschi, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, V. Ketlerov, V. Konovalov, S. Kopecky, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, C. Lederer, A. Lindote, I. Lopes, R. Losito, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, G. Rockefeller, M. Rosetti, C. Rubbia, G. Rudolf, J. Salgado, C. Santos, L. Sarchiapone, R. Sarmento, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, D. Tarrío, L. Tassan Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Theorical Division (LANL), Los Alamos National Laboratory (LANL), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), C. Massimi, P. Koehler, S. Bisterzo, N. Colonna, R. Gallino, F. Gunsing, F. Käppeler, G. Lorusso, A. Mengoni, M. Pignatari, G. Vannini, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, M. Barbagallo, P. Baumann, F. Bečvář, F. Belloni, M. Bennett, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, F. Herwig, R. Hirschi, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, V. Ketlerov, V. Konovalov, S. Kopecky, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, C. Lederer, A. Lindote, I. Lope, R. Losito, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, G. Rockefeller, M. Rosetti, C. Rubbia, G. Rudolf, J. Salgado, C. Santo, L. Sarchiapone, R. Sarmento, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, D. Tarrío, L. Tassan-Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and TOF

Subjects
Nuclear and High Energy Physics, STELLAR CROSS SECTION, Astrophysics and Astronomy, Neutrons--Captura, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Neutrons--Capture, Nuclear physics, 0103 physical sciences, Neutron, Nuclear Physics - Experiment, 010306 general physics, Nuclear Experiment, Isotopes of magnesium, Physics, NUCLEAR ASTROPHYSICS, Energies::Energia nuclear [Àrees temàtiques de la UPC], Large Hadron Collider, Isotope, 010308 nuclear & particles physics, Nuclear energy, NEUTRON INDUCED NUCLEAR REACTION, Neutron spectroscopy, Neutron capture, 13. Climate action, S PROCESS, Energia nuclear, RESONANCE SPECTROSCOPY, Atomic physics, s-process, Shape analysis (digital geometry)
Abstract

We have measured the neutron capture cross sections of the stable magnesium isotopes 24,25,26Mg in the energy range of interest to the s process using the neutron time-of-flight facility n_TOF at CERN. Capture events from a natural metal sample and from samples enriched in 25Mg and 26Mg were recorded using the total energy method based on C6 2H6 detectors. Neutron resonance parameters were extracted by a simultaneous resonance shape analysis of the present capture data and existing transmission data on a natural isotopic sample. Maxwellian-averaged capture cross sections for the three isotopes were calculated up to thermal energies of 100 keV and their impact on s-process analyses was investigated. At 30 keV the new values of the stellar cross section for 24Mg, 25Mg, and 26Mg are 3.8±0.2 mb, 4.1±0.6 mb, and 0.14±0.01 mb, respectively.

Published
2012
Full Text
View/download PDF

22. Neutron-induced fission cross section measurement of233U,241Am and243Am in the energy range 0.5 MeV ⩽En⩽ 20 MeV at n_TOF at CERN

Author

G. Cortes, J. Pancin, C. Lederer, R. Vlastou, H. Leeb, S. David, L. Perrot, P. Cennini, F. Calvino, Anton Wallner, Corrie S. Moreau, V. Chepel, Roberto Capote, P. Baumann, Y. Kadi, G. Tagliente, P.A. Assimakopoulos, M. Kerveno, C. Eleftheriadis, A. Goverdovski, F. Alvarez-Velarde, H. Frais-Koelbl, Thomas Rauscher, M. Dahlfors, F. Gunsing, Gerald Badurek, R. Dolfini, G. Aerts, M. Mosconi, P. Vaz, G. Vannini, J. Marganiec, S. Andriamonje, Marco Calviani, Cristian Massimi, P. Pavlopoulos, Aaron Couture, J. Salgado, A. J. M. Plompen, F. Belloni, C. Stephan, S. O'Brien, Mario Barbagallo, Carlos Guerrero, A. Poch, Marco T. Pigni, D. Karadimos, I. Dillmann, G. Rudolf, F. Cerutti, D. Cano-Ott, C. Pretel, E. Chiaveri, E. Jericha, L. Marques, I. Lopes, Michael Heil, A. Pavlik, Heinz Oberhummer, C. Santos, P. F. Mastinu, R. Terlizzi, S. Walter, C. Domingo-Pardo, L. Ferrant, K. Wisshak, A. Lindote, James L. Cox, E. González-Romero, L. Fitzpatrick, L. Tavora, K. Fujii, R. C. Haight, Masayuki Igashira, C. Paradela, H. Wendler, L. Audouin, M. Embid-Segura, D. Villamarin, P. E. Koehler, P. Rullhusen, V. Ketlerov, Michael Wiescher, L. Sarchiapone, ntof, F. Bečvář, M. Meaze, Manuel Lozano, Ralf Plag, H. Álvarez, M. Oshima, M. Krtička, J. L. Tain, C Lampoudis, J. Andrzejewski, M. Rosetti, F. Voss, W.I. Furman, C. T. Papadopoulos, E. Kossionides, R. Ferreira-Marques, T. Martinez, I. Duran, C. A. Papachristodoulou, F. Neves, P. M. Milazzo, C. Rubbia, V. Konovalov, Javier Praena, Isabel S. Gonçalves, A. Plukis, S. Marrone, A. Carrillo de Albornoz, F. Käppeler, E. Griesmayer, S. Lukic, Nicola Colonna, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Vasilis Vlachoudis, Alberto Mengoni, A. Ventura, F. Gramegna, I. Savvidis, B. Haas, M. C. Vincente, W. Dridi, Rene Reifarth, J. M. Quesada, L. Tassan-Got, S. Isaev, U. Abbondanno, E. Berthoumieux, C. Carrapiço, D. Karamanis, F Belloni, P M Milazzo, M Calviani, N Colonna, P Mastinu, U Abbondanno, G Aert, H Álvarez, F Álvarez-Velarde, S Andriamonje, J Andrzejewski, P Assimakopoulo, L Audouin, G Badurek, M Barbagallo, P Baumann, F Bečvář, E Berthoumieux, F Calviño, F Cerutti, D Cano-Ott, R Capote, C Carrapiço, A Carrillo de Albornoz, P Cennini, V Chepel, E Chiaveri, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillmann, R Dolfini, C Domingo-Pardo, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, L Ferrant, A Ferrari, R Ferreira-Marque, L Fitzpatrick, H Frais-Koelbl, K Fujii, W Furman, I Goncalve, E González-Romero, A Goverdovski, F Gramegna, E Griesmayer, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, S Isaev, E Jericha, F Käppeler, Y Kadi, D Karadimo, D Karamani, V Ketlerov, M Kerveno, P Koehler, V Konovalov, E Kossionide, M Krtička, C Lampoudi, C Lederer, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, L Marque, S Marrone, T Martínez, C Massimi, M H Meaze, A Mengoni, C Moreau, M Mosconi, F Neve, H Oberhummer, S O'Brien, M Oshima, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, J Praena, C Pretel, J Quesada, T Rauscher, R Reifarth, M Rosetti, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, G Tagliente, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, A Wallner, S Walter, H Wendler, M Wiescher, and K Wisshak

Subjects
Fission, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, Neutron cross section, Neutron, 010306 general physics, Nuclear Experiment, Mathematical Physics, EMERGING NUCLEAR TECHNOLOGIES, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Neutron radiation, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, NEUTRON INDUCED FISSION, Time of flight, TIME-OF-FLIGHT, Ionization chamber, Physics::Accelerator Physics, Atomic physics
Abstract

Neutron-induced fission cross section measurements of U-233, Am-243 and Am-241 relative to U-235 have been carried out at the neutron time-of-flight facility n_TOF at CERN. A fast ionization chamber has been employed. All samples were located in the same detector; therefore the studied elements and the reference U-235 target are subject to the same neutron beam.

Published
2012

23. FLUKA Capabilities and CERN Applications for the Study of Radiation Damage to Electronics at High-Energy Hadron Accelerators

Author

C. Theis, S. Trovati, Annarita Margiotta, L. Sarchiapone, Francesco Cerutti, Helmut Vincke, Alfredo Ferrari, Stefan Roesler, Johannes Ranft, Katia Parodi, K Roeed, Heinz Vincke, M. Pelliccioni, Daniel B. Kramer, F. Broggi, Mario Santana, A. Ferrari, Lawrence Pinsky, Roberto Versaci, N. Zapp, Giuseppe Battistoni, George Smirnov, Florian Sommerer, M. Sioli, J. Vollaire, Maria Vittoria Garzelli, Rosaria Villari, E. Gadioli, Vasilis Vlachoudis, M. Carboni, Markus Brugger, Alberto Fasso, Paola Sala, C. Morone, M. Campanella, Mattias Lantz, Alessio Mereghetti, Andrea Mairani, Vincenzo Patera, Silvia Muraro, S. Rollet, Elias Lebbos, Anton Empl, Vittorio Boccone, G. BATTISTONI, V. BOCCONE, F. BROGGI, M. BRUGGER, M. CAMPANELLA, M. CARBONI, F. CERUTTI, A. EMPL, A. FASSÒ, E. GADIOLI, ALFREDO FERRARI, ANNA FERRARI, M. GARZELLI, D. KRAMER, M. LANTZ, E. LEBBOS, A. MAIRANI, A. MARGIOTTA, A. MEREGHETTI, C. MORONE, S. MURARO, K. PARODI, V. PATERA, M. PELLICCIONI, L. PINSKY, J. RANFT, S. ROESLER, K. ROEED, S. ROLLET, P. R. SALA, M. SANTANA, L. SARCHIAPONE, M. SIOLI, G. SMIRNOV, F. SOMMERER, C. THEIS, S. TROVATI, R. VERSACI, R. VILLARI, HEINZ VINCKE, HELMUT VINCKE, V. VLACHOUDIS, J. VOLLAIRE, and N. ZAPP

Subjects
Physics, Range (particle radiation), Large Hadron Collider, Nuclear engineering, RADIOPROTECTION, General Medicine, Radiation, Characterization (materials science), MONTE CARLO, Electromagnetic shielding, Calibration, Radiation damage, PARTICLE PHYSICS, Electronics
Abstract

The assessment of radiation damage to electronics is a complex process and requires a detailed description of the full particle energy spectra, as well as a clear characterization of the quantities used to predict radiation damage. FLUKA, a multi-purpose particle interaction and transport code, is capable of calculating proton-proton and heavy ion collisions at LHC energies and beyond. It correctly describes the entire hadronic and electromagnetic particle cascade initiated by secondary particles from TeV energies down to thermal neutrons, and provides direct scoring capabilities essential to estimate in detail the possible risk of radiation damage to electronics. This paper presents the FLUKA capabilities for applications related to radiation damage to electronics, providing benchmarking examples and showing the practical applications of FLUKA at CERN facilities such as CNGS and LHC. Related applications range from the study of device effects, the detailed characterization of the radiation field and radiation monitor calibration, to the input requirements for important mitigation studies including shielding, relocation or other options.

Published
2011

24. Neutron-induced fission cross section of nat-Pb and 209-Bi from threshold to 1 GeV: An improved parametrization

Author

D. Tarrío, L. Tassan Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Paradela, C. Stephan, D. Trubert, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo Pardo, W. Dridi, C. Eleftheriadis, M. Embid Segura, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. González Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, G. Tagliente, J. L. Tain, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, D. Tarrío, L. Tassan-Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Paradela, C. Stephan, D. Trubert, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, G. Tagliente, J. L. Tain, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak.

Subjects
Physics::Instrumentation and Detectors, NEUTRON-INDUCED REACTION, Nuclear Theory, Nuclear Experiment, FISSION
Abstract

Neutron-induced fission cross sections for natPb and 209Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to 235U and 238U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.

Published
2011

25. 197-Au(n,gamma) cross section in the uresolved resonance region

Author

C. Lederer, N. Colonna, C. Domingo Pardo, F. Gunsing, F. Käppeler, A. Mengoni, A. Wallner, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, S. Galanopoulos, I. F. Gonçalves, E. González Romero, F. Gramegna, C. Guerrero, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papadopoulos, C. Paradela, A. Pavlik, P. Pavlopoulos, G. Perdikakis, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, L. Sarchiapone, R. Sarmento, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, C. Lederer, N. Colonna, C. Domingo-Pardo, F. Gunsing, F. Käppeler, C.Massimi, A. Mengoni, A. Wallner, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, †, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, S. Galanopoulo, I. F. Gonçalve, E. González-Romero, F. Gramegna, C. Guerrero, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papadopoulo, C. Paradela, A. Pavlik, P. Pavlopoulo, G. Perdikaki, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, L. Sarchiapone, R. Sarmento, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak.

Subjects
NEUTRON-INDUCED REACTION, NEUTRON CAPTURE
Abstract

The cross section of the reaction 197Au(n,γ) was measured with the time-of-flight technique at the n_TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C6D6 (where D denotes 2H) liquid scintillators for the detection of prompt capture γ rays. The results with a total uncertainty of 3.9%–6.7% for a resolution of 20 bins per energy decade show fair agreement with the Evaluated Nuclear Data File Version B-VII.0 (ENDF/B-VII.0), which contains the standard evaluation. The Maxwellian-averaged cross section (MACS) at 30 keV is in excellent agreement with the one according to the ENDF/B-VII.0 evaluation and 4.7% higher than the MACS measured independently by activation technique. Structures in the cross section, which had also been reported earlier, have been interpreted as being due to clusters of resonances.

Published
2011

26. Neutron-induced fission cross-sectionof 233-U in the energy range 0.5<20 MeV

Author

The n_TOF Collaboration, F. Belloni, M. Calviani, N. Colonna, P. Mastinu, P. M. Milazzo, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martınez, MASSIMI, CRISTIAN, M. H. Meaze, A. Mengoni, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, VANNINI, GIANNI, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, The n_TOF Collaboration, F. Belloni, M. Calviani, N. Colonna, P. Mastinu, P. M. Milazzo, U. Abbondanno, G. Aert, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martınez, C. Massimi, M. H. Meaze, A. Mengoni, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak

Subjects
NEUTRON-INDUCED REACTION, Nuclear Experiment, FISSION
Abstract

The neutron-induced fission cross-section of 233U has been measured at the CERN n_TOF facility relative to the standard fission cross-section of 235U between 0.5 and 20MeV. The experiment was performed with a fast ionization chamber for the detection of the fission fragments and to discriminate against α -particles from the natural radioactivity of the samples. The high instantaneous flux and the low background of the n_TOF facility result in data with uncertainties of ≈ 3% , which were found in good agreement with previous experiments. The high quality of the present results allows to improve the evaluation of the 233U (n,f) cross-section and, consequently, the design of energy systems based on the Th/U cycle.

Published
2011

27. Neutron-induced fission cross section of 234U and 237Np measured at the CERN Neutron Time-of-Flight (n TOF) facility

Author

C. Paradela, L. Tassan Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Tarrío, D. Trubert, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo Pardo, W. Dridi, C. Eleftheriadis, M. Embid Segura, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. González Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, G. Tagliente, J. L. Tain, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), C. Paradela, L. Tassan-Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Tarrío, D. Trubert, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, G. Tagliente, J. L. Tain, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak

Subjects
NEUTRON-INDUCED REACTIONS, NUCLEAR PHYSICS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, NUCLEAR FISSION, 25.85.Ec, 28.65.+a, 28.41.Kw, 28.41.Vx
Abstract

A high-resolution measurement of the neutron-induced fission cross section of 234U and 237Np has been performed at the CERN Neutron Time-of-Flight facility. The cross sections have been determined in a wide energy range from 1 eV to 1 GeV using the evaluated 235U cross section as reference. In these measurements the energy determination for the 234U resonances could be improved, whereas previous discrepancies for the 237Np resonances were confirmed. New cross-section data are provided for high neutron energies that go beyond the limits of prior evaluations, obtaining important differences in the case of 237Np.

Published
2010
Full Text
View/download PDF

28. Astrophysics at n-TOF facility at CERN

Author

G. Vannini, L. Perrot, Alfredo Ferrari, R. Ferreira-Marques, J. Salgado, A. Poch, P. E. Koehler, I. Goncalves, L. Tavora, Ralf Plag, Thomas Rauscher, M. Embid-Segura, E. Jericha, R. Vlastou, I. Duran, Sara Bisterzo, M. Kerveno, M. Krtička, F. Calviño, A. Herrera-Martinez, N. Patronis, C. Santos, E. Kossionides, Manuel Lozano, D. Karadimos, C. Pretel, W.I. Furman, V. Chepel, P. Rullhusen, J. Cox, T. Martinez, Javier Praena, F. Bečvář, Rene Reifarth, P. Baumann, I. Dillman, G. Aerts, Masayuki Igashira, Laurent Tassan-Got, A. Lindote, S. David, K. Fujii, Marco Calviani, P. Pavlopoulos, G. Cortes, G. Tagliente, P. Cennini, J. M. Quesada, S. Walter, A. J. M. Plompen, R. Gallino, C. Carrapiço, C Papadopoulos, E. Berthoumieux, Alberto Mengoni, G. Rudolf, I. Lopes, M. Mosconi, E. Gonzalez-Romero, Fabio Belloni, B. Haas, P. M. Milazzo, Michael Heil, F. Alvarez-Velarde, C. Stephan, L. Sarchiapone, Roberto Capote, R. Terlizzi, Gerald Badurek, A. Plukis, F. Neves, W. Dridi, Carlos Guerrero, D. Karamanis, S. Marrone, F. Gramegna, H. Álvarez, Heinz Oberhummer, J. L. Tain, J. Marganiec, S. Andriamonje, I. Savvidis, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, P. F. Mastinu, M. C. Vincente, C. Papachristodoulou, U. Abbondanno, J. Pancin, E. Chiaveri, D. Cano-Ott, R. C. Haight, M. Dahlfors, L. Audouin, Michael Wiescher, P. Vaz, D. Villamarin, Marco T. Pigni, Alberto Ventura, Aaron Couture, A. Pavlik, C. Domingo-Pardo, C. Eleftheriadis, C. Paradela, S. Lukic, Yacine Kadi, F. Käppeler, F. Voss, Nicola Colonna, H. Leeb, K. Wisshak, H. Wendler, F. Gunsing, Cristian Massimi, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, G Tagliente, U Abbondanno, G Aert, H Alvarez, F Alvarez-Velarde, S Andriamonje, J Andrzejewski, L Audouin, G Badurek, P Baumann, F Bečvář, F Belloni, E Berthoumieux, S Bisterzo, F Calviño, M Calviani, D Cano-Ott, R Capote, C Carrapiço, P Cennini, V Chepel, E Chiaveri, N Colonna, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillman, C Domingo-Pardo, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, A Ferrari, R Ferreira-Marque, K Fujii, W Furman, R Gallino, I Goncalve, E Gonzalez-Romero, F Gramegna, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, E Jericha, F Käppeler, Y Kadi, D Karadimo, D Karamani, M Kerveno, P Koehler, E Kossionide, M Krtička, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, S Marrone, T Martinez, C Massimi, P Mastinu, A Mengoni, P M Milazzo, M Mosconi, F Neve, H Oberhummer, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, J Praena, C Pretel, J Quesada, T Rauscher, R Reifarth, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, S Walter, H Wendler, M Wiescher, and K Wisshak

Subjects
s proce, Nuclear reaction, History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear physics, Astrophysics, Education, CERN, Neutron cross section, Nuclear astrophysics, Neutron, Spallation, n_TOF, Nuclear Experiment, Physics, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Física [Àrees temàtiques de la UPC], nucleosynthesis, Computer Science Applications, Neutron source, Physics::Accelerator Physics, Física nuclear, s-process, Nucleosynthesis, Spallation Neutron Source
Abstract

The neutron time of flight (n_TOF) facility at CERN is a spallation neutron source with white neutron energy spectrum (from thermal to several GeV), covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross section required in s-process nucleosynthesis. This contribution presents an overview on the astrophysical program carried on at the n_TOF facility, the main results and their implications.

Published
2010

29. Neutron physics of the Re/Os clock. I. Measurements of the (n,gamma) cross sections of the 186,187,188-Os at the CERN n_TOF facility

Author

M. MOSCONI, K. FUJII, A. MENGONI, C. DOMINGO PARDO, F. KAPPELER, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BAUMANN, F. BECVAR, E. BERTHOUMIEUX, F. CALVINO, M. CALVIANI, D. CANO OTT, R. CAPOTE, C. CARRAPICO, P. CENNINI, V. CHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMANN, W. DRIDI, I. DURAN, C. ELEFTHERIADIS, L. FERRANT, A. FERRARI, R. FERREIRA MARQUES, L. FITZPATRICK, H. FRAIS KOELBL, W. FURMAN, R. GALLINO, I. GONCALVES, E. GONZALEZ ROMERO, A. GOVERDOVSKI, F. GRAMEGNA, E. GRIESMAYER, C. GUERRERO, F. GUNSING, B. HAAS, R. HAIGHT, M. HEIL, A. HERRERA MARTINEZ, M. IGASHIRA, E. JERICHA, Y. KADI, D. KARADIMOS, M. KERVENO, P. KOEHLER, E. KOSSIONIDES, M. KRTICKA, C. LAMPOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, S. MARRONE, T. MARTINEZ, P. MASTINU, E. MENDOZA, P. M. MILAZZO, C. MOREAU, F. NEVES, H. OBERHUMMER, S. O'BRIEN, J. PANCIN, C. PAPACHRISTODOULOU, C. PAPADOPOULOS, C. PARADELA, N. PATRONIS, A. PAVLIK, P. PAVLOPOULOS, L. PERROT, M. T. PIGNI, R. PLAG, A. PLOMPEN, A. PLUKIS, A. POCH, J. PRAENA, C. PRETEL, J. QUESADA, T. RAUSCHER, R. REIFARTH, C. RUBBIA, G. RUDOLF, P. RULLHUSEN, J. SALGADO, C. SANTOS, L. SARCHIAPONE, I. SAVVIDIS, C. STEPHAN, G. TAGLIENTE, J. L. TAIN, L. TASSAN GOT, L. TAVORA, R. TERLIZZI, P. VAZ, A. VENTURA, D. VILLAMARIN, M. C. VICENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, M. WIESCHER, K. WISSHAK, MASSIMI, CRISTIAN, VANNINI, GIANNI, M. MOSCONI, K. FUJII, A. MENGONI, C. DOMINGO-PARDO, F. KAPPELER, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ-VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BAUMANN, F. BECVAR, E. BERTHOUMIEUX, F. CALVINO, M. CALVIANI, D. CANO-OTT, R. CAPOTE, C. CARRAPICO, P. CENNINI, V. CHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMANN, W. DRIDI, I. DURAN, C. ELEFTHERIADIS, L. FERRANT, A. FERRARI, R. FERREIRA-MARQUES, L. FITZPATRICK, H. FRAIS-KOELBL, W. FURMAN, R.GALLINO, I. GONCALVES, E. GONZALEZ-ROMERO, A. GOVERDOVSKI, F. GRAMEGNA, E. GRIESMAYER, C. GUERRERO, F. GUNSING, B. HAAS, R. HAIGHT, M. HEIL, A. HERRERA-MARTINEZ, M. IGASHIRA, E. JERICHA, Y. KADI, D. KARADIMOS, M. KERVENO, P. KOEHLER, E. KOSSIONIDES, M. KRTICKA, C. LAMPOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, S. MARRONE, T. MARTINEZ, C. MASSIMI, P. MASTINU, E. MENDOZA, P.M. MILAZZO, C. MOREAU, F. NEVES, H. OBERHUMMER, S. O'BRIEN, J. PANCIN, C. PAPACHRISTODOULOU, C. PAPADOPOULOS, C. PARADELA, N. PATRONIS, A. PAVLIK, P. PAVLOPOULOS, L. PERROT, M.T. PIGNI, R. PLAG, A. PLOMPEN, A. PLUKIS, A. POCH, J. PRAENA, C. PRETEL, J. QUESADA, T. RAUSCHER, R. REIFARTH, C. RUBBIA, G. RUDOLF, P. RULLHUSEN, J. SALGADO, C. SANTOS, L. SARCHIAPONE, I. SAVVIDIS, C. STEPHAN, G. TAGLIENTE, J.L. TAIN, L. TASSAN-GOT, L. TAVORA, R. TERLIZZI, VANNINI G., P. VAZ, A. VENTURA, D. VILLAMARIN, M.C. VICENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, M. WIESCHER, and K. WISSHAK

Subjects
AGE OF THE UNIVERSE, NEUTRON CAPTURE CROSS SECTIONS, NEUTRON PHYSICS, COSMOCHRONOMETER
Abstract

The precise determination of the neutron capture cross sections of Os186 and Os187 is important to define the s-process abundance of Os187 at the formation of the solar system. This quantity can be used to evaluate the radiogenic component of the abundance of Os187 due to the decay of the unstable Re187 (t1/2=41.2 Gyr) and from this to infer the time duration of the nucleosynthesis in our galaxy (Re/Os cosmochronometer). The neutron capture cross sections of Os186, Os187, and Os188 have been measured at the CERN n-TOF facility from 1 eV to 1 MeV, covering the entire energy range of astrophysical interest. The measurement has been performed by time-of-flight technique using isotopically enriched samples and two C6D6 scintillation detectors for recording the prompt γ rays emitted in the capture events. Maxwellian averaged capture cross sections have been determined for thermal energies between kT=5 and 100 keV corresponding to all possible s-process scenarios. The estimated uncertainties for the values at 30 keV are 4.1, 3.3, and 4.7% for Os186, Os187, and Os188, respectively. © 2010 The American Physical Society

Published
2010

30. Astrophysics at n-TOF facility

Author

G. Tagliente, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, P. Mastinu, A. Mengoni, P. M. Milazzo, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, Hugo F. Arellano, MASSIMI, CRISTIAN, VANNINI, GIANNI, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC), Ricardo Alarcon , Phil Cole , Andres J. Kreiner and Hugo F. Arellano, G. Tagliente, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera-Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, and Hugo F. Arellano

Subjects
Physics, Neutron cross-section, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Astrophysics, Neutron scattering, Neutron temperature, Nuclear physics, Neutron capture, Elemental Nucleosynthesi, N_TOF, Nuclear astrophysics, Neutron cross section, r-process, Neutron, n_TOF CERN, s-process, Nuclear Experiment, s process
Abstract

Heavy elements with Z ≥ 30 are made by neutron capture reactions during stellar He burning and presumably in supernovae. This contribution deals mainly with the slow neutron capture (s) process which is responsible for about one half of the abundances in the mass region between Fe and Bi. The slow time scale implies that the reaction path of this process involves mostly stable isotopes which can be studied in detail in laboratory experiments. The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several MeV, covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross section required in s-process nucleosynthesis. This contribution gives an overview on the astrophysical program made at n_TOF facility, the results and the implications will be considered. European Commission (EC) FIKW-CT-2000-00107

Published
2010

31. Study of Neutron-Induced Fission Cross Sections of U, Am, and Cm at ṉTOF

Author

P. M. Milazzo, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becčvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, P. Mastinu, A. Mengoni, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, Hugo F. Arellano, MASSIMI, CRISTIAN, VANNINI, GIANNI, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission Joint Research Centre European Community (EC), Ricardo Alarcon , Phil Cole , Andres J. Kreiner and Hugo F. Arellano, P. M. Milazzo, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becčvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera-Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, and Hugo F. Arellano

Subjects
Nuclear reaction, Isotopes of uranium, Isotope, Chemistry, Fission, Nuclear Theory, Radiochemistry, Alpha particle, NEUTRON INDUCED REACTIONS, Neutron cross section, Nuclear physics, Neutron-induced fission reactions, N_TOF, Uranium-233, Physics::Accelerator Physics, Neutron, Spallation, Nuclear Experiment, TIME-OF-Flight
Abstract

Neutron induced fission cross sections of several isotopes have been measured at the CERN n_TOF spallation neutron facility. Between them some measurements involve isotopes (233U, 241Am, 243Am, 245Cm) relevant for applications to nuclear technologies. The n_TOF facility delivers neutrons with high instantaneous flux and in a wide energy range, from thermal up to 250 MeV. The experimental apparatus consists of an ionization chamber that discriminates fission fragments and α particles coming from natural radioactivity of the samples. All the measurements were performed referring to the standard cross section of 235U. European Commission Joint Research Centre European Community (EC) FIKW-CT-2000-00107

Published
2010
Full Text
View/download PDF

32. Neutron cross-sections for next generation reactors: New data from n_TOF

Author

C. Eleftheriadis, Carlos Guerrero, S. David, L. Tavora, G. Cortes, Alfredo Ferrari, R. Ferreira-Marques, Heinz Oberhummer, G. Tagliente, Yacine Kadi, P. Rullhusen, A. Herrera-Martinez, N. Patronis, L. Perrot, K. Wisshak, D. Villamarin, W.I. Furman, Masayuki Igashira, A. J. M. Plompen, J. Marganiec, S. Andriamonje, V. Chepel, S. Walter, Ralf Plag, S. Lukic, Marco T. Pigni, G. Rudolf, I. Lopes, F. Neves, C. A. Papachristodoulou, P. M. Milazzo, P. Cennini, M. Oshima, H. Wendler, Roberto Capote, E. Kossionides, P. Baumann, P.A. Assimakopoulos, J. Andrzejewski, James L. Cox, J. Salgado, G. Aerts, E. Chiaveri, Carlo Rubbia, P. F. Mastinu, D. Cano-Ott, V. Vlachoudis, M. Mosconi, F. Voss, A. Poch, L. Sarchiapone, I. Duran, F. Becvar, E. Griesmayer, H. Leeb, I. Dillman, C. Stephan, S. O'Brien, A. Carrillo de Albornoz, R. Terlizzi, M. C. Vicente, Marco Calviani, V. Konovalov, F. Käppeler, Nicola Colonna, G. Vannini, Corrie S. Moreau, R. C. Haight, P. E. Koehler, D. Karamanis, E. Jericha, S. Isaev, U. Abbondanno, C. Paradela, F. Gunsing, L. Audouin, E. Gonzalez-Romero, R. Vlastou, Michael Wiescher, A. Plukis, Cristian Massimi, E. Berthoumieux, F. Gramegna, M. Krtička, F. Calviño, T. Martinez, A. Lindote, Rene Reifarth, I. Savvidis, J. M. Quesada, L. Tassan-Got, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, L. Ferrant, A. Ventura, P. Pavlopoulos, C. Lampoudis, H. Álvarez, A. Pavlik, J. L. Tain, C. Domingo-Pardo, Martin Heil, H. Frais-Koelbl, Manuel Lozano, J. Pancin, B. Haas, M. Dahlfors, P. Vaz, Aaron Couture, C. T. Papadopoulos, W. Dridi, L. Marques, Isabel S. Gonçalves, S. Marrone, M. Kerveno, K. Fujii, Alberto Mengoni, V. Ketlerov, C. Pretel, M. Rosetti, Thomas Rauscher, D. Karadimos, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), TOF, N. Colonna, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, B. Berthier, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant,†, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, I. Goncalves, E. González-Romero, A. Goverdovski, F. Gramegna, E Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, V. Ketlerov, M. Kerveno, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Fission, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Sensitivity and Specificity, Nuclear physics, Data acquisition, Neutron flux, Nuclear Reactors, 0103 physical sciences, Nuclear astrophysics, Neutron, 010306 general physics, Nuclear Experiment, Physics, Neutrons, Radiation, Large Hadron Collider, 010308 nuclear & particles physics, Reproducibility of Results, Equipment Design, Neutron Capture Therapy, NUCLEAR FISSION, Equipment Failure Analysis, 13. Climate action, Nuclear fission, Spallation Neutron Source
Abstract

7th International Topical Meeting on Industrial Radiation and Radioisotope Measurement Application. Czech Tech univ, Prague, CZECH REPUBLIC. JUN 22-27, 2008, In 2002, an innovative neutron time-of-flight facility started operation at CERN: n_TOF. The main characteristics that make the new facility unique are the high instantaneous neutron flux, high resolution and wide energy range. Combined with state-of-the-art detectors and data acquisition system, these features have allowed to collect high accuracy neutron cross-section data on a variety of isotopes, many of which radioactive, of interest for Nuclear Astrophysics and for applications to advanced reactor technologies. A review of the most important results on capture and fission reactions obtained so far at n_TOF is presented, together with plans for new measurements related to nuclear industry.

Published
2010
Full Text
View/download PDF

33. 197-Au(n,gamma) cross section in the resonance region

Author

MASSIMI, CRISTIAN, C. Domingo Pardo, VANNINI, GIANNI, L. Audouin, C. Guerrero, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, S. Galanopoulos, I. F. Gonçalves, E. González Romero, F. Gramegna, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, C. Lederer, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papadopoulos, C. Paradela, A. Pavlik, P. Pavlopoulos, G. Perdikakis, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, L. Sarchiapone, R. Sarmento, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, C.Massimi, C. Domingo-Pardo, G. Vannini, L. Audouin, C. Guerrero, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, †, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, S. Galanopoulo, I. F. Gonçalve, E. González-Romero, F. Gramegna, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, P. Koehler, E. Kossionide, M. Krtička, C. Lampoudi, C. Lederer, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papadopoulo, C. Paradela, A. Pavlik, P. Pavlopoulo, G. Perdikaki, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, L. Sarchiapone, R. Sarmento, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak

Subjects
NEUTRON CAPTURE
Abstract

The (n,γ) cross section of Au197 has been measured at n_TOF in the resolved resonance region, up to 5 keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C6D6 detectors, and the total absorption calorimetry based on a 4π BaF2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n_TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed.

Published
2010

34. Neutron physics of the Re/Os clock. III. Resonance analyses and stellar (n,γ) cross sections of 186,187,188Os

Author

K. FUJII, M. MOSCONI, A. MENGONI, C. DOMINGO PARDO, F. KAPPELER, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BAUMANN, F. BECVAR, E. BERTHOUMIEUX, F. CALVINO, M. CALVIANI, D. CANO OTT, R. CAPOTE, C. CARRAPICO, P. CENNINI, V. CHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMANN, W. DRIDI, I. DURAN, C. ELEFTHERIADIS, L. FERRANT, A. FERRARI, R. FERREIRA MARQUES, L. FITZPATRICK, H. FRAIS KOELBL, W. FURMAN, R. GALLINO, I. GONCALVES, E. GONZALEZ ROMERO, A. GOVERDOVSKI, F. GRAMEGNA, E. GRIESMAYER, C. GUERRERO, F. GUNSING, B. HAAS, R. HAIGHT, M. HEIL, A. HERRERA MARTINEZ, M. IGASHIRA, E. JERICHA, Y. KADI, D. KARADIMOS, M. KERVENO, P. KOEHLER, E. KOSSIONIDES, M. KRTICKA, C. LAMPOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, S. MARRONE, T. MARTINEZ, P. MASTINU, E. MENDOZA, P. M. MILAZZO, C. MOREAU, F. NEVES, H. OBERHUMMER, S. O'BRIEN, J. PANCIN, C. PAPACHRISTODOULOU, C. PAPADOPOULOS, C. PARADELA, N. PATRONIS, A. PAVLIK, P. PAVLOPOULOS, L. PERROT, M. T. PIGNI, R. PLAG, A. PLOMPEN, A. PLUKIS, A. POCH, J. PRAENA, C. PRETEL, J. QUESADA, T. RAUSCHER, R. REIFARTH, C. RUBBIA, G. RUDOLF, P. RULLHUSEN, J. SALGADO, C. SANTOS, L. SARCHIAPONE, I. SAVVIDIS, C. STEPHAN, G. TAGLIENTE, J. L. TAIN, L. TASSAN GOT, L. TAVORA, R. TERLIZZI, P. VAZ, A. VENTURA, D. VILLAMARIN, M. C. VICENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, M. WIESCHER, K. WISSHAK, MASSIMI, CRISTIAN, VANNINI, GIANNI, K. FUJII, M. MOSCONI, A. MENGONI, C. DOMINGO-PARDO, F. KAPPELER, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ-VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BAUMANN, F. BECVAR, E. BERTHOUMIEUX, F. CALVINO, M. CALVIANI, D. CANO-OTT, R. CAPOTE, C. CARRAPICO, P. CENNINI, V. CHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMANN, W. DRIDI, I. DURAN, C. ELEFTHERIADIS, L. FERRANT, A. FERRARI, R. FERREIRA-MARQUES, L. FITZPATRICK, H. FRAIS-KOELBL, W. FURMAN, R.GALLINO, I. GONCALVES, E. GONZALEZ-ROMERO, A. GOVERDOVSKI, F. GRAMEGNA, E. GRIESMAYER, C. GUERRERO, F. GUNSING, B. HAAS, R. HAIGHT, M. HEIL, A. HERRERA-MARTINEZ, M. IGASHIRA, E. JERICHA, Y. KADI, D. KARADIMOS, M. KERVENO, P. KOEHLER, E. KOSSIONIDES, M. KRTICKA, C. LAMPOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, S. MARRONE, T. MARTINEZ, C. MASSIMI, P. MASTINU, E. MENDOZA, P.M. MILAZZO, C. MOREAU, F. NEVES, H. OBERHUMMER, S. O'BRIEN, J. PANCIN, C. PAPACHRISTODOULOU, C. PAPADOPOULOS, C. PARADELA, N. PATRONIS, A. PAVLIK, P. PAVLOPOULOS, L. PERROT, M.T. PIGNI, R. PLAG, A. PLOMPEN, A. PLUKIS, A. POCH, J. PRAENA, C. PRETEL, J. QUESADA, T. RAUSCHER, R. REIFARTH, C. RUBBIA, G. RUDOLF, P. RULLHUSEN, J. SALGADO, C. SANTOS, L. SARCHIAPONE, I. SAVVIDIS, C. STEPHAN, G. TAGLIENTE, J.L. TAIN, L. TASSAN-GOT, L. TAVORA, R. TERLIZZI, VANNINI G., P. VAZ, A. VENTURA, D. VILLAMARIN, M.C. VICENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, M. WIESCHER, and K. WISSHAK

Subjects
STELLAR NUCLEOSYNTHESIS, NEUTRON RESONANCE ANALYSES, R-MATRIX ANALYSIS, NEUTRON CAPTURE REACTIONS, TIME DURATION OF GALACTIC NUCLEOSYNTHESIS
Abstract

Neutron resonance analyses have been performed for the capture cross sections of 186Os, 187Os, and 188Os measured at the n_TOF facility at cern. Resonance parameters have been extracted up to 5, 3, and 8 keV, respectively, using the sammy code for a full R-matrix fit of the capture yields. From these results average resonance parameters were derived by a statistical analysis to provide a comprehensive experimental basis for modeling of the stellar neutron capture rates of these isotopes in terms of the Hauser-Feshbach statistical model. Consistent calculations for the capture and inelastic reaction channels are crucial for the evaluation of stellar enhancement factors to correct the Maxwellian averaged cross sections obtained from experimental data for the effect of thermally populated excited states. These factors have been calculated for the full temperature range of current scenarios of s-process nucleosynthesis using the combined information of the experimental data in the region of resolved resonances and in the continuum. The consequences of this analysis for the s-process component of the 187Os abundance and the related impact on the evaluation of the time duration of galactic nucleosynthesis via the Re/Os cosmochronometer are discussed.

Published
2010

35. n_TOF Experiment: Past, Present And Future

Author

S. Marrone, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, A. Carnllo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamanis, D. Karadimos, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Dugersuren Dashdorj, Undraa Agvaanluvsan, Gary E. Mitchell, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission Joint Research Centre European Community (EC), Dugersuren Dashdorj , Undraa Agvaanluvsan and Gary E. Mitchell, S. Marrone, U. Abbondanno, G. Aert, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, A. Carnllo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamani, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Dugersuren Dashdorj, Undraa Agvaanluvsan, and Gary E. Mitchell

Subjects
Physics, Large Hadron Collider, Fission, Physics::Instrumentation and Detectors, Nuclear Theory, Measure (physics), Th/U fuel cycle, nuclear technologie, spallation neutron source, Nuclear physics, Neutron capture and fission cross sections, Neutron capture, Nuclear technology, Upgrade, MINOR ACTINIDES TRANSMUTATIONS, Photon strength function, Data analysis, Physics::Accelerator Physics, Neutron, Nuclear Experiment
Abstract

The neutron Time-of-Flight facility at CERN was built to measure the neutron capture and fission cross sections. A short description of the facility, the detectors and the data analysis techniques will be illustrated. A short review of the preliminary results on the fission cross sections is presented together with the implications in fundamental nuclear physics and in nuclear technologies. Future perspectives both for the experimental campaign and for the upgrade of the facility are discussed. European Commission Joint Research Centre European Community (EC) FIKW-CT-2000-00107

Published
2009

36. High-accuracy U233(n,f) cross-section measurement at the white-neutron source n_TOF from near-thermal to 1 MeV neutron energy

Author

M. Calviani, J. Praena, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, P. Mastinu, E. Mendoza, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vicente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, M. Calviani, J. Praena, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimo, M. Kerveno, P. Koehler, E. Kossionide, M. Krticka, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, E. Mendoza, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M.T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vicente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, and K. Wisshak

Subjects
NETRON INDUCED REACTIONS, Nuclear Experiment, NUCLEAR FISSION
Abstract

The U233(n,f) cross section has been measured at the white neutron source n-TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from ∼30 meV to 1 MeV neutron energy. The U233(n,f) cross section has been determined relative to a reference sample of U235(n,f) measured simultaneously with the same detector. The very high instantaneous neutron flux and the intrinsically low background of the n-TOF installation result in an accuracy around 3% in the whole energy range, while the energy resolution of the neutron beam allows for an accurate description of the fission cross section by means of R-matrix analysis over a wide energy range. The results are, in general, in good agreement with the most recent high-accuracy measurement of this fission cross section, over the more limited range of the previous measurements, and indicated that even the latest evaluations underestimate the cross section in the epithermal region. The present high-quality data provide the basis for a more precise evaluation of the U233 fission cross section and for improving the reliability of databases needed for the design of new energy systems based on the Th/U cycle. © 2009 The American Physical Society

Published
2009

37. The n_TOF Total Absorption Calorimeter for neutron capture measurements at CERN

Author

F. Gunsing, Cristian Massimi, S. David, G. Tagliente, R. C. Haight, J. Salgado, A. Poch, L. Tavora, A. J. M. Plompen, Rene Reifarth, S. Walter, P. M. Milazzo, L. Audouin, G. Vannini, A. Herrera-Martinez, C. Paradela, S. Lukic, A. Pavlik, G. Rudolf, I. Lopes, Michael Wiescher, F. Käppeler, C. T. Papadopoulos, P. Pavlopoulos, C. Domingo-Pardo, J. Marganiec, S. Andriamonje, P. Rullhusen, P. E. Koehler, D. Villamarin, Ralf Plag, Michael Heil, J. M. Quesada, Marco T. Pigni, I. Savvidis, J. Andrzejewski, N. Patronis, P. Cennini, Carlo Rubbia, B. Haas, P. F. Mastinu, V. Vlachoudis, F. Alvarez-Velarde, F. Gramegna, Iris Dillmann, S. Marrone, G. Cortes, C. Santos, M. Mosconi, C. Carrapiço, C. Stephan, S. O'Brien, Manuel Lozano, F. Bečvář, W. Dridi, R. Terlizzi, E. Mendoza, F. Voss, C. Eleftheriadis, C. Lampoudis, E. Berthoumieux, T. Martinez, Roberto Capote, Yacine Kadi, P.A. Assimakopoulos, H. Álvarez, Nicola Colonna, M. Krtička, F. Neves, E. Jericha, F. Calviño, J. L. Tain, Carlos Guerrero, Alfredo Ferrari, M. Dahlfors, R. Ferreira-Marques, U. Abbondanno, P. Vaz, Heinz Oberhummer, M. Kerveno, Alberto Ventura, Aaron Couture, E. Gonzalez-Romero, W.I. Furman, A. Plukis, Alberto Mengoni, J. Pancin, J. Cox, E. Chiaveri, D. Cano-Ott, Laurent Tassan-Got, A. Lindote, C. A. Papachristodoulou, L. Ferrant, M. C. Vicente, G. Aerts, K. Wisshak, C. Pretel, H. Leeb, K. Fujii, E. Kossionides, Javier Praena, I. Goncalves, Thomas Rauscher, D. Karadimos, L. Sarchiapone, R. Vlastou, Marco Calviani, V. Chepel, Masayuki Igashira, I. Duran, P. Baumann, L. Perrot, C. Moreau, Gerald Badurek, C. Guerrero, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimo, M. Kerveno, P. Koehler, E. Kossionide, M. Krticka, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, E. Mendoza, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M.T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vicente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, K. Wisshak, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), Pôle Universitaire Léonard de Vinci (PôLE UNIVERSITAIRE LéONARD DE VINCI), Pôle Universitaire Léonard de Vinci (PULV), and nTOF

Subjects
Nuclear and High Energy Physics, Nuclear transmutation, Physics::Instrumentation and Detectors, GAMMA RAY CALORIMETER, neutron cross-sections, Total Absorption, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], time-of-flight, 7. Clean energy, 01 natural sciences, Nuclear physics, Stellar nucleosynthesis, Nucleosynthesis, 0103 physical sciences, Neutron, n_TOF, 010306 general physics, Absorption (electromagnetic radiation), total absorption, Nuclear Experiment, Instrumentation, isotopes, cross-section measurements, Physics, Time-of-Flight, detector, 010308 nuclear & particles physics, baf2 detector, transmutation, BaF2 detector, Calorimeter, Time of flight, Neutron capture, stomatognathic diseases, n_tof, beam, of-flight facility, NEUTRON CAPTURE, neutron capture, Neutron cross-sections
Abstract

The n_TOF Collaboration has built and commissioned a high-performance detector for (n, gamma) measurements called the Total Absorption Calorimeter (TAC). The TAC was especially designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis. We present a detailed description of the TAC and discuss its overall performance in terms of energy and time resolution, background discrimination, detection efficiency and neutron sensitivity. (C) 2009 Elsevier B.V. All rights reserved. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment

Published
2009
Full Text
View/download PDF

38. Measurement and analysis of theAm243neutron capture cross section at the n_TOF facility at CERN

Author

N. Colonna, S. David, G. Tagliente, B. Haas, M. Dahlfors, Masayuki Igashira, C. T. Papadopoulos, P. Vaz, W. Dridi, A. Ventura, Rene Reifarth, M. Oshima, J. M. Quesada, L. Tassan-Got, Aaron Couture, K. Wisshak, I. Savvidis, A. Plukis, C. Rubbia, J. Andrzejewski, Marco T. Pigni, J. Salgado, A. Poch, F. Voss, G. Vannini, L. Tavora, Isabel S. Gonçalves, S. Marrone, Christoph A. Stephan, J. Marganiec, L. Ferrant, L. Sarchiapone, M. C. Vicente, C. Pretel, G. Aerts, P. Rullhusen, Vasilis Vlachoudis, M. Krtička, D. Karamanis, I. Dillmann, E. Kossionides, J. Balibrea, H. Wendler, L. Fitzpatrick, F. Neves, R. C. Haight, J. L. Tain, R. Ferreira-Marques, T. Martinez, F. Gramegna, Javier Praena, S. Lo Meo, P. M. Milazzo, P. Cennini, Matthias Heil, J. Pancin, D. Villamarin, F. Gunsing, A. Herrera-Martinez, N. Patronis, S. Andriamonje, A. Lindote, C. Lampoudis, C. Paradela, L. Audouin, Isabel Lopes, M. Mosconi, Y. Kadi, H. Frais-Koelbl, M. Kerveno, G. Cortes, A. Goverdovski, Michael Wiescher, S. Isaev, P. E. Koehler, E. Chiaveri, P. F. Mastinu, A. Pavlik, C. Domingo-Pardo, F. Alvarez-Velarde, Cristian Massimi, Gerald Badurek, S. O'Brien, C. Carrapiço, Arnaud Ferrari, L. Perrot, K. Fujii, Marco Calviani, R. Dolfini, Roberto Capote, R. Terlizzi, A. Carrillo de Albornoz, P.A. Assimakopoulos, S. Lukic, P. Pavlopoulos, Fabio Belloni, D. Cano-Ott, R. Vlastou, E. Berthoumieux, F. Calviño, H. Leeb, V. Chepel, C. Santos, G. Rudolf, F. Bečvář, E. Mendoza, E. Jericha, R. Lossito, E. Griesmayer, P. Baumann, I. Duran, Carlos Guerrero, U. Abbondanno, C. Eleftheriadis, Heinz Oberhummer, Thomas Rauscher, D. Karadimos, E. González-Romero, A. Mengoni, V. Ketlerov, W.I. Furman, C. A. Papachristodoulou, S. Walter, Ralf Plag, V. Konovalov, F. Käppeler, L. Marques, Manuel Lozano, Corrie S. Moreau, A. J. M. Plompen, and James L. Cox

Subjects
Physics, Nuclear reaction, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), Nuclear transmutation, Neutron cross section, Neutron, 7. Clean energy, Resonance (particle physics), Neutron temperature, Calorimeter
Abstract

Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the 243Am(n,? ) cross section uncertainty. Method: The 243Am(n,? ) cross section has been measured at the n_TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The 243Am(n,? ) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the 243Am(n,? ) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.

Published
2014
Full Text
View/download PDF

39. Neutron-induced fission cross section ofU234measured at the CERN n_TOF facility

Author

C. Domingo-Pardo, J. Salgado, A. Poch, M. Kerveno, G. Cortes, M. Sedysheva, F. Gunsing, M. Oshima, R. C. Haight, J. Andrzejewski, Cristian Massimi, L. Sarchiapone, Carlo Rubbia, Ralf Plag, V. Vlachoudis, Roberto Capote, L. Audouin, K. C. Stamoulis, P. Assimakopoulos, F. Neves, E. Griesmayer, V. Ketlerov, M. Diakaki, I. Duran, Alberto Mengoni, C. Papadopoulos, A. J. M. Plompen, V. Chepel, Michael Wiescher, G. Rudolf, I. Lopes, A. Herrera-Martinez, N. Patronis, P. Baumann, H. Leeb, M. Igashira, G. Vannini, P. E. Koehler, P. M. Milazzo, W. Dridi, B. Haas, Alfredo Ferrari, R. Ferreira-Marques, S. G. Isaev, R. Gallino, E. Gonzalez-Romero, E. Berthoumieux, Michael Heil, W.I. Furman, L. Perrot, C. Eleftheriadis, F. Bečvář, K. Ioannidis, S. Marrone, Rene Reifarth, K. Wisshak, R. Vlastou, A. Plukis, A. Lindote, C. Moreau, M. Rosetti, H. Frais-Koelbl, J. Pancin, E. Chiaveri, D. Cano-Ott, V.Y. Konovalov, Yacine Kadi, H. Wendler, P. Vaz, H. Álvarez, C. Lamboudis, J. L. Tain, I. Goncalves, Thomas Rauscher, Alberto Ventura, Aaron Couture, D. Karadimos, Carlos Guerrero, Heinz Oberhummer, A. Dorochenko, M. Krtička, F. Calviño, G. Aerts, E. Jericha, J. Marganiec, S. Andriamonje, L. Fitzpatrick, P. F. Mastinu, S. O'Brien, M. Embid-Segura, C. Pretel, A. Carrillo de Albornoz, Manuel Lozano, L. Ferrant, D. Villamarin, J. Cox, Laurent Tassan-Got, L. Marques, M. C. Vincente, A. Goverdovski, L. Tavora, F. Alvarez-Velarde, K. Fuji, Gerald Badurek, C. Paradela, R. Dolfini, S. Lukic, P. Rullhusen, U. Abbondanno, I. Savvidis, F. Voss, A. Tsinganis, D. Kolokolov, Nicola Colonna, P. Pavlopoulos, S. David, G. Tagliente, P. Cennini, J. M. Quesada, D. Karamanis, M. Mosconi, C. Stephan, R. Terlizzi, F. Gramegna, F. Käppeler, Paraskevi Demetriou, and A. Pavlik

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, Fission, Detector, Flux, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, Ionization chamber, Neutron, Nuclear Experiment, 010306 general physics, High energy resolution
Abstract

The neutron-induced fission cross section of U234 has been measured at the CERN n-TOF facility relative to the standard fission cross section of U235 from 20 keV to 1.4 MeV and of U238 from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n-TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to β-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the talys code with model parameters tuned to fairly reproduce the experimental data. © 2014 American Physical Society.

Published
2014
Full Text
View/download PDF

40. The SPES project at the INFN- Laboratori Nazionali di Legnaro

Author

G. Bisoffi, D. Zafiropoulos, P. Favaron, J. Valiente, Mattia Manzolaro, M. Calderolla, L. Piazza, A. Pisent, Mario Maggiore, R. Pegoraro, Michele Comunian, J. Vasquez, L. Sarchiapone, Alberto Andrighetto, A.M. Porcellato, F. Gramegna, Alessio Galatà, S. Canella, M. Rigato, G. Bassato, C. Roncolato, P. F. Mastinu, Juan Esposito, M. Rossignoli, S. Zanella, J. Bermudez, Luciano Calabretta, Daniele Scarpa, M. Giacchini, Stefano Corradetti, D. Maniero, G. Pretea, D. Benini, M. Lollo, Alessandra Lombardi, A. Monetti, and J. Wyss

Subjects
Nuclear reaction, Physics, Ion beam, Proton, Fission, QC1-999, Cyclotron, Nuclear Theory, Linear particle accelerator, law.invention, Nuclear physics, law, Physics::Accelerator Physics, Neutron, Nuclear Experiment, Beam (structure)
Abstract

The SPES Radioactive Ion Beam (RIB) facility at INFN-LNL is in the construction phase. It is based on the ISOL method with an UCx Direct Target able to sustain a power of 10 kW. The primary proton beam is delivered by a high current Cyclotron accelerator, with energy 35-70 MeV and a beam current of 0.2-0.5 mA. Neutron-rich radioactive ions will be produced by proton induced Uranium fission in the UCx target at an expected fission rate in the order of 10 13 fissions per second. The exotic isotopes will be re-accelerated by the ALPI superconducting LINAC at energies of 10A MeV and higher, for masses in the region A=130 amu at expected rate on the secondary target of 10 7 - 10 9 pps. The SPES project has the aim to provide high intensity and high- quality beams of neutron-rich nuclei as well as to develop an interdisciplinary research center based on the cyclotron proton beam.

Published
2014

41. Study of 234U(n,f) resonances measured at the CERN n TOF facility

Author

B. Berthier, E. Kossionides, Javier Praena, V. Chepel, B. Haas, J. Marganiec, P. Cennini, S. Andriamonje, G. Vannini, C. Lampoudis, S. David, G. Tagliente, S. Lukic, E. Chiaveri, Corrie S. Moreau, W. Dridi, S. Walter, P. Baumann, A. Pavlik, Ralf Plag, P. F. Mastinu, P. E. Koehler, M. Mosconi, M. Kerveno, A. Ventura, C. Domingo-Pardo, L. Sarchiapone, R. Vlastou, C. Pretel, A. J. M. Plompen, J. Salgado, C. Stephan, S. O'Brien, Rene Reifarth, M. Embid-Segura, G. Aerts, E. Berthoumieux, F. Voss, A. Poch, P. Pavlopoulos, J. M. Quesada, L. Tassan-Got, G. Cortes, G. Rudolf, I. Lopes, I. Dillmann, D. Tarrío, Manuel Lozano, Matthias Heil, M. Oshima, Nicola Colonna, R. Terlizzi, L.S. Leong, Carlos Guerrero, M. C. Vincente, James L. Cox, Marco T. Pigni, Vasilis Vlachoudis, I. Duran, J. Andrzejewski, A. Herrera-Martinez, L. Tavora, Heinz Oberhummer, F. Gramegna, Arnaud Ferrari, Roberto Capote, Masayuki Igashira, D. Cano-Ott, Y. Kadi, A. Plukis, L. Perrot, F. Käppeler, E. Leal-Cidoncha, C. Eleftheriadis, P. Rullhusen, L. Ferrant, W.I. Furman, C. Carrapiço, S. Isaev, Thomas Rauscher, K. Fujii, R. C. Haight, F. Alvarez-Velarde, Marco Calviani, U. Abbondanno, M. Krtička, F. Calviño, Alberto Mengoni, D. Karadimos, M. Dahlfors, C. Paradela, K. Wisshak, R. Ferreira-Marques, T. Martinez, P. Vaz, I. Savvidis, Gerald Badurek, E. González-Romero, L. Audouin, H. Álvarez, Aaron Couture, J. L. Tain, Michael Wiescher, J. Pancin, C. T. Papadopoulos, D. Villamarin, C. Rubbia, Isabel S. Gonçalves, S. Marrone, A. Lindote, H. Leeb, E. Jericha, F. Gunsing, D. Trubert, Cristian Massimi, F. Neves, P. M. Milazzo, C. Santos, F. Bečvář, C. Le Naour, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions

Subjects
Physics, Nuclear reaction, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Nuclear and High Energy Physics, Fission, Large Hadron Collider, Cross section, TOF, Resonance, Nuclear data, Neutron, Nuclear physics, Cross section (physics), Neutron cross section, Nuclear Reactions
Abstract

We present the analysis of the resolved resonance region for the 234U(n,f) cross section data measured at the CERN n TOF facility. The resonance parameters in the energy range from 1 eV to 1500 eV have been obtained with the SAMMY code by using as initial parameters for the fit the resonance parameters of the JENDL-3.3 evaluation. In addition, the statistical analysis has been accomplished, partly with the SAMDIST code, in order to study the level spacing and the Mehta-Dyson correlation.

Published
2014

42. The SPES radioactive ion beam project of INFN

Author

D. Zafiropoulos, Mattia Manzolaro, F. Gramegna, J. Valiente, Michele Comunian, Juan Esposito, G. Bassato, J. Wyss, G. Bisoffi, Giacomo de Angelis, C. Roncolato, J. Bermudez, M. Giacchini, A. Monetti, Mario Maggiore, S. Zanella, P. F. Mastinu, J. Vasquez, Daniele Scarpa, L. Sarchiapone, M. Lollo, Alessandra Lombardi, Stefano Corradetti, S. Canella, G. Prete, M. Rigato, L. Piazza, Alberto Andrighetto, D. Benini, A. Russo, D. Maniero, R. Pegoraro, P. Favaron, M. Rossignoli, Luciano Calabretta, Alessio Galatà, A.M. Porcellato, Andrea Pisent, and M. Calderolla

Subjects
History, Ion beam, Proton, Chemistry, Fission, Nuclear Theory, Cyclotron, Linear particle accelerator, Computer Science Applications, Education, law.invention, Isotope separation, Nuclear physics, law, Physics::Accelerator Physics, Neutron, Nuclear Experiment, Beam (structure)
Abstract

The SPES Radioactive Ion Beam facility at INFN-LNL is presently in the construction phase. The facility is based on the Isol (Isotope separation on-line) method with an UCx Direct Target able to sustain a power of 10 kW. The primary proton beam is provided by a high current Cyclotron accelerator with energy of 35-70 MeV and a beam current of 0.20.5 mA. Neutron-rich radioactive ions are produced by proton induced Uranium fission at an expected fission rate of the order of 1013 fissions per second. After ionization and selection the exotic isotopes are re-accelerated by the ALPI superconducting Linac at energies of 10A MeV for masses in the region A = 130 amu. The expected secondary beam rates are of the order of 107 ? 109 pps. Aim of the SPES project is to provide a facility for high intensity radioactive ion beams for nuclear physics research as well as to develop an interdisciplinary research center based on the cyclotron proton beam.

Published
2014

43. The measurement of the 206Pbn, gamma cross section and stellar implications

Author

L. Tavora, L. Perrot, I. Savvidis, E. Gonzalez-Romero, P. Rullhusen, A. Plukis, F. Käppeler, R. Ferreira-Marques, L. Ferrant, R. C. Haight, D. Karamanis, I. Dillmann, P. Pavlopoulos, C. Paradela, I. Duran, M. C. Vincente, V. Chepel, Rene Reifarth, J. M. Quesada, L. Tassan-Got, L. Audouin, P. Baumann, B. Haas, Michael Wiescher, J. Andrzejewski, G. Aerts, C. Carrapiço, A. J. M. Plompen, U. Abbondanno, P. E. Koehler, Carlo Rubbia, W. Dridi, W.I. Furman, M. Dahlfors, G. Rudolf, I. Lopes, D. Villamarin, Marco T. Pigni, James L. Cox, F. Bečvář, E. Berthoumieux, P. Vaz, C. A. Papachristodoulou, F. Neves, P. M. Milazzo, Alberto Ventura, Aaron Couture, E. Jericha, S. Walter, S. Lukic, F. Gramegna, Ralf Plag, J. Salgado, A. Poch, J. Marganiec, S. Andriamonje, P. F. Mastinu, L. Sarchiapone, H. Leeb, Masayuki Igashira, J. Pancin, P. Cennini, Carlos Guerrero, F. Gunsing, M. Embid-Segura, G. Cortes, M. Mosconi, R. Vlastou, Heinz Oberhummer, C. Stephan, S. O'Brien, F. Voss, Manuel Lozano, Y. Kadi, Cristian Massimi, R. Terlizzi, M. Krtička, F. Calviño, Marco Calviani, Nicola Colonna, Vasilis Vlachoudis, S. David, G. Tagliente, K. Wisshak, A. Pavlik, Roberto Capote, P.A. Assimakopoulos, C. Domingo-Pardo, G. Vannini, F. Alvarez-Velarde, D. Cano-Ott, Gerald Badurek, A. Lindote, C. T. Papadopoulos, S. Marrone, H. Álvarez, R. Gallino, C. Lamboudis, J. L. Tain, Michael Heil, M. Kerveno, E. Kossionides, C. Eleftheriadis, I. Goncalves, Thomas Rauscher, C. Santos, D. Karadimos, K. Fujii, C. Pretel, Sara Bisterzo, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Alberto Mengoni, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, C Domingo-Pardo, U Abbondanno, G Aert, H Álvarez, F Alvarez-Velarde, S Andriamonje, J Andrzejewski, P Assimakopoulo, L Audouin, G Badurek, P Baumann, F Bečvář, E Berthoumieux, S Bisterzo, F Calviño, M Calviani, D Cano-Ott, R Capote, C Carrapiço, P Cennini, V Chepel, N Colonna, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillmann, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, L Ferrant, A Ferrari, R Ferreira-Marque, K Fujii, W Furman, R Gallino, I Goncalve, E Gonzalez-Romero, F Gramegna, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, E Jericha, Y Kadi, F Käppeler, D Karadimo, D Karamani, M Kerveno, P Koehler, E Kossionide, M Krtička, C Lamboudi, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, S Marrone, C Massimi, P Mastinu, A Mengoni, P M Milazzo, M Mosconi, F Neve, H Oberhummer, S O'Brien, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, C Pretel, J Quesada, T Rauscher, R Reifarth, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, G Tagliente, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, S Walter, M Wiescher, K Wisshak, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, s proce, Nuclear and High Energy Physics, Spectrometer, experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), Neutron capture, Stellar nucleosynthesis, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron cross section, r-process, CERN n_TOF spectrometer, Alpha decay, 010306 general physics, 010303 astronomy & astrophysics
Abstract

The neutron capture cross section of (206)Pb has been measured at the CERN n_TOF spectrometer using a setup of two C(6)D(6) detectors. In the energy interval from 1 eV to 600 keV the cross section is dominated by resonances, which were analyzed via the R-matrix analysis code SAMMY. In the relevant energy ranges for stellar nucleosynthesis, i. e., at thermal energies of kT = 8 keV and kT = 23 keV, the present Maxwellian average cross section differs by 20% and 9% from the recommended values of Bao et al respectively. From the new cross section the s-abundance of (206)Pb could be reliably determined as 70( 4)%. This result is of importance in order to test and constrain r-process abundance calculations in the actinide region, because the r-process portion of (206)Pb is dominated by alpha-back decays of short-lived transbismuth isotopes.

Published
2008
Full Text
View/download PDF

44. Measurement of the radiative neutron capture cross section of 206-Pb and its astrophysical implication

Author

C. Domingo Pardo, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, R. Dolfini, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamanis, D. Karadimos, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, C. Domingo-Pardo, U. Abbondanno, G. Aert, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, R. Dolfini, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamani, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, and K. Wisshak(n_TOF Collaboration)

Subjects
NUCLEAR ASTROPHYSICS, NEUTRON CAPTURE REACTION, NUCLEAR PHYSICS
Published
2007

45. Status and outlook of the neutron time-of-flight facility n_TOF at CERN

Author

F. Käppeler, C. Lampoudis, L. Marques, A. J. M. Plompen, H. Frais-Koelbl, A. Pavlik, I. Goncalves, F. Voss, E. Kossionides, I. Duran, P. Cennini, P.A. Assimakopoulos, S. Walter, C. T. Papadopoulos, A. Herrera-Martinez, Marco T. Pigni, N. Patronis, W. Furman, R. Vlastou, Thomas Rauscher, G. Vannini, E. Berthoumieux, P.M. Milazzo, P. Baumann, Nicola Colonna, S. Lukic, K. Fujii, M. Oshima, M. Dahlfors, D. Cano-Ott, F. Gunsing, P. Vaz, Carlo Rubbia, D. Karadimos, R. Ferreira-Marques, I. Dillman, Alberto Ventura, V. Ketlerov, I. Savvidis, V. Chepel, T. Martínez, V. Vlachoudis, R. Haight, D. Villamarin, G. Tagliente, C. Stephan, C. Pretel, P. E. Koehler, Cristian Massimi, J. Pancin, L. Sarchiapone, L. Perrot, I. Lopes, J. Cox, S. Marrone, C. A. Papachristodoulou, P. Mastinu, Manuel Lozano, E. Chiaveri, F. Neves, G. Cortes, H. Wendler, L. Ferrant, V.Y. Konovalov, H. Álvarez, M. Rosetti, J. Andrzejewski, G. Rudolf, K. Wisshak, Carlos Guerrero, F. Bečvář, E. González-Romero, R. Reifarth, R. Terlizzi, J. M. Quesada, A. Couture, M.C. Vincente, Heinz Oberhummer, E. Griesmayer, J. Marganiec, R. Capote, L. Tassan-Got, L. Tavora, M. Mosconi, P. Rullhusen, S. David, A. Lindote, L. Audouin, A. Poch, B. Haas, P. Pavlopoulos, C. Eleftheriadis, M. Kerveno, Yacine Kadi, U. Abbondanno, W. Dridi, Alberto Mengoni, R. Plag, Alfredo Ferrari, H. Leeb, S. G. Isaev, A. Carrillo de Albornoz, C. Paradela, A. Plukis, M. Krtička, F. Calviño, E. Jericha, S. Andriamonje, J.L. Tain, M. Heil, F. Gramegna, M. Igashira, M. Wiescher, C. Domingo-Pardo, G. Aerts, S. O'Brien, A. Goverdovski, C. Moreau, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, D. Karamanis, J. Salgado, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, F. Gunsing, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, D. Cano-Ott, R. Capote, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, H. Frais-Koelbl, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M.T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pole Universitaire Leonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, SPALLATION, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, NEUTRONS, Neutron time-of-flight scattering, 29.25, 28.20.−v, 24.30.−v, 98.80, Neutron flux, 0103 physical sciences, CERN, Neutron cross section, Neutron detection, Neutron, n_TOF, 010306 general physics, Nuclear Experiment, Instrumentation, Physics, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Time-of-flight, Neutron temperature, Neutron capture, N_TOF, Neutron source, Física nuclear, TIME OF FLIGHT, Spallation
Abstract

5 pages, 2 figures.-- PACS nrs.: 29.25; 28.20.−v; 24.30.−v; 98.80.-- ISI Article Identifier: 000248784100221, Printed version published Aug 2007.-- Issue title: The Application of Accelerators in Research and Industry - Proceedings of the Nineteenth International Conference on The Application of Accelerators in Research and Industry (Fort Worth, TX, Aug 20-25, 2006)., The neutron time-of-flight facility n_TOF at CERN, fully operational since 2002, combines a high instantaneous neutron flux with high energy resolution. The wide energy range and the high neutron flux per time-of-flight burst result in a much enhanced signal to background ratio for neutron capture of radioactive isotopes and makes this facility well suited for the measurement of high quality neutron-induced reaction cross-sections., Neutrons are created by spallation reactions induced by a pulsed 20 GeV/c proton beam impinging on a lead target. A 5 cm water slab surrounding the lead target serves as a coolant and at the same time as a moderator of the spallation neutron spectrum, providing a wide energy spectrum from 0.1 eV to about 250 MeV., By the end of 2005, a first phase of data taking has been successfully terminated. Fission and capture experiments have been performed on a variety of isotopes of interest for nuclear astrophysics, advanced nuclear technologies and for basic nuclear physics., The instrumentation developed for this facility consists of parallel plate avalanche counter and fission ionization chamber detectors for the fission experiments and of low mass C6D6 detectors and a 4 pi BaF2 total absorption calorimeter for capture experiments. A new data acquisition system, based on sampling of the detector signals, has been developed to cope with the high count rates and to minimize the effective dead time to only a few tens of nanosecond., A second phase of data taking is planned to start in 2007, after an upgrade of the spallation target. On the longer term, the construction of a flight path at 20 in resulting in an increased neutron flux of about a factor of 100 opens new possibilities.

Published
2007
Full Text
View/download PDF

46. Resonance capture cross section of 207Pb

Author

C. Domingo Pardo, U. Abbondanno, G. Aerts, H. Álvarez Pol, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, R. Dolfini, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamanis, D. Karadimos, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, VANNINI, GIANNI, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), C. Domingo-Pardo, U. Abbondanno, G. Aert, H. Álvarez-Pol, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, R. Dolfini, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamani, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, and K. Wisshak(n_TOF Collaboration)

Subjects
25.40.Lw, 27.80.+w, 97.10.Cv, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Physics - Experiment, S-PROCESS AND R-PROCESS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), NEUTRON TIME OF FLIGHT, Nuclear Experiment, NEUTRON CAPTURE CROSS SECTION
Abstract

The radiative neutron capture cross section of 207Pb has been measured at the CERN neutron time of flight installation n_TOF using the pulse height weighting technique in the resolved energy region. The measurement has been performed with an optimized setup of two C6D6 scintillation detectors, which allowed us to reduce scattered neutron backgrounds down to a negligible level. Resonance parameters and radiative kernels have been determined for 16 resonances by means of an R-matrix analysis in the neutron energy range from 3 keV to 320 keV. Good agreement with previous measurements was found at low neutron energies, whereas substantial discrepancies appear beyond 45 keV. With the present results, we obtain an s-process contribution of 77(8)% to the solar abundance of 207Pb. This corresponds to an r-process component of 23(8)%, which is important for deriving the U/Th ages of metal poor halo stars., 7 pages, 3 figures, to be published in Phys. Rev. C

Published
2006
Full Text
View/download PDF

47. THE Am-243 NEUTRON CAPTURE MEASUREMENT AT THE n_TOF FACILITY

Author

F. Gramegna, N. Colonna, Marco T. Pigni, A. Pavlik, G. Vannini, K. Fujii, L. Tavora, M. Rosetti, Fabio Belloni, A. Plukis, L. Perrot, I. Savvidis, F. Käppeler, P. Rullhusen, S. David, Manuel Lozano, D. Cano-Ott, C. Eleftheriadis, V. Chepel, F. Voss, G. Tagliente, A. Ventura, G. Rudolf, M. Dahlfors, F. Becvar, E. Mendoza, A. Lindote, F. Calviño, Thomas Rauscher, E. Jericha, P. Vaz, H. Leeb, I. Duran, G. Cortes, P. Baumann, C. Domingo Pardo, A. Herrera-Martinez, P. Cennini, Isabel Lopes, D. Karadimos, L. Marques, Aaron Couture, J. Salgado, R. Vlastou, A. Poch, E. Berthoumieux, J. Marganiec, E. González-Romero, L. Sarchiapone, Vasilis Vlachoudis, C. Pretel, A. Mengoni, A. Ferrari, K. Wisshak, M. Meaze, Roberto Capote, P.A. Assimakopoulos, R. C. Haight, A. Goverdovski, M. Mosconi, Costas G. Papadopoulos, B. Haas, V. Ketlerov, C. Paradela, L. Audouin, S. O'Brien, F. Alvarez-Velarde, L. Ferrant, D. Karamanis, N. Patronis, M. Oshima, Matthias Heil, J. Pancin, R. Terlizzi, J. Andrzejewski, Michael Wiescher, W.I. Furman, H. Wendler, S. Isaev, Masayuki Igashira, S. Lukic, Gerald Badurek, C. Stephan, F. Gunsing, W. Dridi, F. Neves, Y. Kadi, Rene Reifarth, H. Frais-Koelbl, Cristian Massimi, P. M. Milazzo, V. Konovalov, I. Dillman, J. M. Quesada, L. Tassan-Got, R. Dolfini, Marco Calviani, C. A. Papachristodoulou, D. Villamarin, A. Carrillo de Albornoz, E. Griesmayer, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, P. Pavlopoulos, S. Walter, P. E. Koehler, Ralf Plag, A. García-Rios, C. Rubbia, G. Aerts, Isabel S. Gonçalves, S. Marrone, M. Kerveno, Corrie S. Moreau, A. J. M. Plompen, James L. Cox, M. Krtička, R. Ferreira-Marques, T. Martinez, H. Álvarez, J. L. Tain, E. Kossionides, Javier Praena, S. Andriamonje, E. Chiaveri, P. F. Mastinu, and C. Lampoudis

Subjects
Nuclear physics, Neutron capture, Materials science
Published
2013
Full Text
View/download PDF

48. The93Zr(n,γ) reaction up to 8 keV neutron energy

Author

L. Perrot, M. Dahlfors, E. Jericha, P. Vaz, Aaron Couture, S. Walter, A. Herrera-Martinez, N. Patronis, Ralf Plag, H. Álvarez, S. David, C. Lamboudis, J. L. Tain, W.I. Furman, Arnaud Ferrari, L. Tavora, C. A. Papachristodoulou, M. Rosetti, G. Tagliente, D. Karamanis, I. Dillmann, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, K. Wisshak, E. Kossionides, A. Ventura, F. Käppeler, Corrie S. Moreau, C. Eleftheriadis, Javier Praena, M. Kerveno, J. Andrzejewski, G. Vannini, Marco Calviani, B. Haas, V. Chepel, G. Rudolf, P. Rullhusen, A. Plukis, J. Salgado, G. Aerts, A. Poch, C. Santos, D. Karadimos, F. Neves, P. M. Milazzo, P. Baumann, C. Carrapiço, D. Villamarin, F. Gunsing, E. González-Romero, A. Pavlik, A. Mengoni, C. Pretel, W. Dridi, M. Krtička, F. Calviño, Rene Reifarth, Cristian Massimi, F. Bečvář, C. Domingo-Pardo, L. Sarchiapone, R. Ferreira-Marques, T. Martinez, A. J. M. Plompen, J. M. Quesada, F. Voss, P. Cennini, Marco T. Pigni, Matthias Heil, I. Duran, J. Marganiec, S. Andriamonje, L. Tassan-Got, G. Cortes, P. Pavlopoulos, E. Chiaveri, M. Embid-Segura, F. Alvarez-Velarde, H. Leeb, I. Savvidis, M. Mosconi, P. F. Mastinu, Y. Kadi, S. O'Brien, Gerald Badurek, R. C. Haight, D. Cano-Ott, R. Terlizzi, Roberto Capote, C. Paradela, L. Audouin, Nicola Colonna, K. Fujii, Vasilis Vlachoudis, R. Vlastou, E. Berthoumieux, Fabio Belloni, M. C. Vincente, Christoph A. Stephan, S. Lukic, A. Lindote, F. Gramegna, Isabel Lopes, Michael Wiescher, C. T. Papadopoulos, C. Rubbia, Isabel S. Gonçalves, and S. Marrone

Subjects
Physics, Nuclear and High Energy Physics, Radionuclide, Range (particle radiation), Nuclear transmutation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Resonance, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Time of flight, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Physics::Accelerator Physics, Atomic physics, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract

The (n,γ) reaction of the radioactive isotope 93Zr has been measured at the n-TOF high-resolution time-of-flight facility at CERN. Resonance parameters have been extracted in the neutron energy range up to 8 keV, yielding capture widths smaller (14%) than reported in an earlier experiment. These results are important for detailed nucleosynthesis calculations and for refined studies of waste transmutation concepts. © 2013 American Physical Society.

Published
2013
Full Text
View/download PDF

49. Neutron spectrometry using LNL bonner spheres and FLUKA

Author

D. Zafiropoulos and L. Sarchiapone

Subjects
Physics, Nuclear physics, Bonner sphere, law, Scintillation counter, Cyclotron, Neutron, SPHERES, Scintillator, Neutron temperature, Neutron spectroscopy, law.invention
Abstract

The characterization of neutron fields has been made with a system based on a scintillation detector and multiple moderating spheres. The system, together with the unfolding procedure, have been tested in quasi-monochromatic neutron energy fields and in complex, mixed, cyclotron based environments. FLUKA simulations have been used to produce response functions and reference energy spectra.

Published
2013
Full Text
View/download PDF

50. The SPES radioactive ion beam project of LNL: status and perspectives

Author

Mario Maggiore, J. Vasquez, G. Bassato, Andrea Pisent, R. Pegoraro, M. Calderolla, A. Russo, P. F. Mastinu, A. Andrigetto, Mattia Manzolaro, G. Prete, Alessio Galatà, M. Rossignoli, M. Giacchini, S. Canella, Luciano Calabretta, J. Valiente, D. Benini, M. Rigato, D. Zafiropoulos, Michele Comunian, Stefano Corradetti, S. Zanella, Juan Esposito, Daniele Scarpa, P. Favaron, A.M. Porcellato, A. Monetti, J. Wyss, C. Roncolato, M. Lollo, J. Bermudez, Alessandra Lombardi, Giacomo de Angelis, D. Maniero, G. Bisoffi, L. Sarchiapone, and F. Gramegna

Subjects
Nuclear reaction, Engineering, Ion beam, Proton, 010308 nuclear & particles physics, business.industry, Fission, Physics, QC1-999, Nuclear Theory, Cyclotron, 01 natural sciences, Engineering physics, Linear particle accelerator, law.invention, Nuclear physics, law, 0103 physical sciences, Physics::Accelerator Physics, Neutron, Nuclear Experiment, 010306 general physics, business, Beam (structure)
Abstract

A new Radioactive Ion Beam (RIB) facility (SPES) is presently under construction at the Legnaro National Laboratories of INFN. The SPES facility is based on the ISOL method using an UCx Direct Target able to sustain a power of 8 kW. The primary proton beam is provided by a high current Cyclotron accelerator with energy of 35-70 MeV and a beam current of 0.2-0.7 mA. Neutron-rich radioactive ions are produced by proton induced fission on an Uranium target at an expected fission rate of the order of 1013 fissions per second. After ionization and selection the exotic isotopes are re-accelerated by the ALPI superconducting LINAC at energies of 10A MeV for masses in the region A=130 amu. The expected secondary beam rates are of the order of 107 - 109 pps. Aim of the SPES facility is to deliver high intensity radioactive ion beams of neutron rich nuclei for nuclear physics research as well as to be an interdisciplinary research centre for radio-isotopes production for medicine and for neutron beams.

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results