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1. Detailed study of Rf and No isotopes radioactive decay properties

Author

M. S. Tezekbayeva, A. V. Yeremin, O. N. Malyshev, M. L. Chelnokov, V. I. Chepigin, A. V. Isaev, A. V. Karpov, A. A. Kuznetsova, A. G. Popeko, Yu. A. Popov, A. I. Svirikhin, E. A. Sokol, A. .. Lopez-Martens, K. .. Hauschild, O. .. Dorvaux, B. .. Gall, P. .. Mosat, and B. S. Sailaubekov

Subjects
no and rf isotopes, radioactive decay, complete fusion reactions, excited compound nucleus, Physics, QC1-999
Abstract

The experiments of detailed study of No and Rf isotopes radioactive decay properties in complete fusion reactions50Ti+208Pb and48Ca+208,206,204Pb with subsequent neutron evaporation from the excited compound nucleus at the kinematic separator SHELS were performed in FLNR JINR. The data of the256Rf decay properties and preliminary data of250No decay properties are presented.

Published
2021
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2. The SFiNx Detector System

Author

A. V. Isaev, A. V. Yeremin, N. I. Zamyatin, I. N. Izosimov, A. A. Kuznetsova, O. N. Malyshev, R. S. Mukhin, A. G. Popeko, Yu. A. Popov, B. Sailaubekov, A. I. Svirikhin, E. A. Sokol, M. S. Tezekbayeva, D. A. Testov, M. L. Chelnokov, V. I. Chepigin, S. Antalic, P. Mosat, P. Brionnet, B. Gall, O. Dorvaux, K. Kessaci, A. Sellam, A. Lopez-Martens, and K. Hauschild

Subjects
Nuclear and High Energy Physics, Radiation, Radiology, Nuclear Medicine and imaging, Atomic and Molecular Physics, and Optics
Published
2022
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3. Investigation of isomeric states in Rf255

Author

R. Chakma, A. Lopez-Martens, K. Hauschild, A. V. Yeremin, O. N. Malyshev, A. G. Popeko, Yu. A. Popov, A. I. Svirikhin, V. I. Chepigin, E. A. Sokol, A. V. Isaev, A. A. Kuznetsova, M. L. Chelnokov, M. S. Tezekbayeva, I. N. Izosimov, O. Dorvaux, B. Gall, and Z. Asfari

Published
2023
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4. Spectroscopy of the Decay Properties of Transfermium Isotopes in Dubna

Author

K. Hauschild, O. Dorvaux, A. V. Isaev, M. L. Chelnokov, A. G. Popeko, B. S. Sailaubekov, B. J. P. Gall, A. A. Kuznetsova, M. S. Tezekbayeva, E. A. Sokol, Yu. A. Popov, O. N. Malyshev, R. S. Mukhin, A. I. Svirikhin, V. I. Chepigin, A. Lopez-Martens, and A. V. Yeremin

Subjects
Nuclear reaction, Nuclear physics, Materials science, Isotope, law, Excited state, Cyclotron, General Physics and Astronomy, Nuclear fusion, Neutron, Spectroscopy, Radioactive decay, law.invention
Abstract

Data is presented on the radioactive decay of isotopes 256Rf and 249, 250No synthesized in complete fusion reactions 50Ti + 208Pb, and 48Ca + 204Pb, with subsequent evaporation of neutrons from the excited state of the composite nucleus. Experiments use high-intensity beams of accelerated heavy ions 48Ca and 50Ti from the U-400 cyclotron at the Flerov Nuclear Reactions Laboratory of the Joint Institute for Nuclear Research and the SHELS kinematic separator.

Published
2021
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5. Prompt neutron emission in the spontaneous fission of $$^{246}$$Fm

Author

A. V. Isaev, R. S. Mukhin, A. V. Andreev, M. A. Bychkov, M. L. Chelnokov, V. I. Chepigin, H. M. Devaraja, O. Dorvaux, M. Forge, B. Gall, K. Hauschild, I. N. Izosimov, K. Kessaci, A. A. Kuznetsova, A. Lopez-Martens, O. N. Malyshev, A. G. Popeko, Yu. A. Popov, A. Rahmatinejad, B. Sailaubekov, T. M. Shneidman, E. A. Sokol, A. I. Svirikhin, D. A. Testov, M. S. Tezekbayeva, A. V. Yeremin, N. I. Zamyatin, and K. Sh. Zhumadilov

Subjects
Nuclear and High Energy Physics
Published
2022
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6. Spectroscopy of the Isotopes of Transfermium Elements in Dubna: Current Status and Prospects

Author

O. N. Malyshev, J. Piot, P. Mosat, A. Lopez-Martens, M. S. Tezekbayeva, D. Tonev, V. I. Chepigin, B. Gall, Elka Stefanova, E. A. Sokol, Yu. A. Popov, K. Hauschild, A. I. Svirikhin, A. A. Kuznetsova, S. Antalic, A. V. Yeremin, A. V. Isaev, O. Dorvaux, M. L. Chelnokov, A. G. Popeko, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Isotope, 010308 nuclear & particles physics, Cyclotron, Gamma ray, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Atomic and Molecular Physics, and Optics, law.invention, Nuclear physics, law, 0103 physical sciences, Gamma spectroscopy, 010306 general physics, Spectroscopy, Radioactive decay
Abstract

International audience; A great many experimental studies devoted to exploring in detail the properties of radioactive decay of the isotopes of transfermium elements by means of alpha, beta, and gamma spectroscopy have been performed over the past fifteen years at the Flerov Laboratory of Nuclear Reactions (Joint Institute for Nuclear Research, Dubna). High-intensity accelerated heavy-ion beams of ${}^{22}$Ne, ${}^{48}$Ca, ${}^{50}$Ti, and ${}^{54}$Cr from the U-400 cyclotron were used in experiments with the SHELS kinematic separator. An upgrade of the separator and detector system is planned in the future with the aim of improving the transportation efficiency for the nuclei under study and the detection efficiency for gamma rays.

Published
2020
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8. Alpha-decay spectroscopy of $^{257}$Rf

Author

K. Hauschild, A. Lopez-Martens, R. Chakma, M. L. Chelnokov, V. I. Chepigin, A. V. Isaev, I. N. Izosimov, D. E. Katrasev, A. A. Kuznetsova, O. N. Malyshev, A. G. Popeko, Yu. A. Popov, E. A. Sokol, A. I. Svirikhin, M. S. Tezekbayeva, A. V. Yeremin, Z. Asfari, O. Dorvaux, B. J. P. Gall, K. Kessaci, D. Ackermann, J. Piot, P. Mosat, B. Andel, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département Recherches Subatomiques (DRS-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), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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, 010308 nuclear & particles physics, 0103 physical sciences, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 010306 general physics, 01 natural sciences, Nuclear Experiment
Abstract

The decay properties of the ground state and excited states of $^{257}$Rf have been investigated with the detector array GABRIELA at the FLNR, Dubna. The electromagnetic decay of a new excited state in $^{253}$No has been observed. The state lies 750 keV above the ground state and is favourably populated in the alpha decay of the low-lying spin isomer of $^{257}$Rf. It decays to the 9/2$^-$ ground state by an M1 transition and is assigned the 11/2$^-$[725] Nilsson configuration. The presence of this state suggests a possible reinterpretation of the decay of the high-K isomer in $^{253}$No., Comment: 7 pages, 4 figures

Published
2021
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9. The New $^{249}$No Isotope

Author

M. S. Tezekbayeva, N. I. Zamyatin, A. G. Popeko, M. L. Chelnokov, P. Mosat, A. A. Kuznetsova, A. V. Isaev, I. N. Izosimov, E. A. Sokol, A. Bronis, K. Hauschild, B. Andel, R. S. Mukhin, B. S. Sailaubekov, O. Dorvaux, B. Gall, Y. A. Popov, O. N. Malyshev, V. I. Chepigin, A. Lopez-Martens, S. Antalic, A. V. Yeremin, A. I. Svirikhin, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Fusion, Radiation, Isotope, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, Branching fraction, Analytical chemistry, Separator (oil production), 7. Clean energy, 01 natural sciences, Atomic and Molecular Physics, and Optics, Decay energy, 0103 physical sciences, Radiology, Nuclear Medicine and imaging, Detector array, 010306 general physics, Line (formation)
Abstract

International audience; In the reaction of complete fusion of $^{48}$Ca-ions with a $^{204}$Pb target, a new α line, related to the decay of a new, previously unknown isotope ($^{249}$No), has been detected in an experiment carried out at the SHELS separator. The α decay energy (E$_{α}$ = 9129 keV) and the half-life (T$_{1/2}$ = 38.1 ± 2.5 ms) are measured using the GABRIELA detector array. The SF branching ratio was estimated (b$_{SF}$ ≤ 0.2%).

Published
2021
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10. Comparative Study of Spontaneous-Fission Characteristics of $^{252}$No and $^{254}$No Isotopes

Author

M. L. Chelnokov, V. I. Chepigin, R. S. Mukhin, I. N. Izosimov, A. V. Andreev, A. Lopez-Martens, P. Mosat, N. I. Zamyatin, P. Brionnet, A. A. Kuznetsova, E. A. Sokol, A. V. Isaev, K. Kessaci, A. Sellam, A. I. Svirikhin, Y. A. Popov, K. Hauschild, O. Dorvaux, S. Antalic, A. V. Yeremin, A. G. Popeko, O. N. Malyshev, B. J. P. Gall, T. M. Shneidman, M. S. Tezekbayeva, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Fission, Nuclear Theory, Cyclotron, chemistry.chemical_element, Kinetic energy, 7. Clean energy, 01 natural sciences, Ion, law.invention, Nuclear physics, law, 0103 physical sciences, Radiology, Nuclear Medicine and imaging, Neutron, Nuclear Experiment, 010306 general physics, Spontaneous fission, Physics, Radiation, Isotope, 010308 nuclear & particles physics, Atomic and Molecular Physics, and Optics, chemistry, Nobelium
Abstract

International audience; Spontaneous fissions of the $^{252}$No and $^{254}$No nobelium isotopes have been studied in a series of experiments with the SHELS separator. These isotopes are produced by colliding a beam of $^{48}$Ca ions from the U-400 cyclotron with the $^{206}$Pb and $^{208}$Pb targets. The measured characteristics of the $^{252}$No and $^{254}$No spontaneous fissions include their half-lives, total kinetic energies of fission fragments, and prompt-neutron multiplicities. The average number of neutrons per $^{254}$No spontaneous-fission act is measured for the first time as 4.88 ± 0.53.

Published
2021
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11. Prompt Neutrons from Spontaneous $^{254}$Rf Fission

Author

A. N. Kuznetsov, A. V. Isaev, P. Mosat, B. M. Retailleau, O. Dorvaux, B. Andel, T. M. Schneidman, I. N. Izosimov, A. G. Popeko, A. Lopez-Martenz, M. L. Chelnokov, S. Antalic, A. V. Yeremin, Elka Stefanova, A. Bronis, A. V. Andreev, A. I. Svirikhin, A. A. Kuznetsova, B. Gall, V. I. Chepigin, Y. A. Popov, D. Tonev, M. S. Tezekbayeva, E. A. Sokol, K. Hauschild, O. N. Malyshev, P. Chauveau, N. I. Zamyatin, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Radiation, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, Fission, Branching fraction, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Atomic and Molecular Physics, and Optics, Ion, Nuclear physics, Prompt neutron, 0103 physical sciences, Nuclear fusion, Radiology, Nuclear Medicine and imaging, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Spontaneous fission
Abstract

International audience; The neutron yield from the spontaneous fission of the short-lived neutron-deficient$^{254}$Rf nucleus produced in the complete fusion reaction with the beam of multiply charged ions from the U400 accelerator at the Flerov Laboratory of Nuclear Reactions (FLNR), Joint Institute for Nuclear Research (JINR), is measured using the combined detection system of the SHELS velocity filter. The half-life and the branching ratio of$^{254}$Rf are also measured. The data on the multiplicity of prompt neutrons from spontaneous fission of$^{256}$Rf ($\bar {\nu }$ = 3.87 ± 0.34) are presented for the first time.

Published
2019
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12. Measurement of proton-evaporation rates in fusion reactions leading to transfermium nuclei

Author

A. V. Isaev, J. Piot, A. A. Kuznetsova, M. L. Chelnokov, M.V. Gustova, A. Lopez-Martens, O. N. Malyshev, Dieter Ackermann, O. Dorvaux, A. G. Popeko, L. Caceres, H. Savajols, B. J. P. Gall, Zouhair Asfari, K. Rezynkina, V. I. Chepigin, Patrick Steinegger, K. Hauschild, E. A. Sokol, M. S. Tezekbayeva, A. V. Karpov, A. V. Yeremin, A. I. Svirikhin, Yu. A. Popov, P. Brionnet, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)

Subjects
Nuclear and High Energy Physics, Proton, Fission, Super heavy nuclei, Fusion-evaporation reaction, Nuclear Theory, Evaporation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Molecular physics, 0103 physical sciences, Nuclear fusion, Neutron, 010306 general physics, Nuclear Experiment, Proton evaporation, Physics::Atmospheric and Oceanic Physics, Spontaneous fission, Physics, Millisecond, Cross section, 010308 nuclear & particles physics, lcsh:QC1-999, Excitation, lcsh:Physics
Abstract

The analysis of fission events following the implantation of evaporation residues produced in the fusion reaction of 50Ti and 209Bi at different bombarding energies has revealed 5 millisecond decays, which are attributed to the spontaneous fission of proton-evaporation channels. The average cross sections for proton evaporation are found to be ∼100 and 10 times smaller than the largest neutron-evaporation channel cross section at the same excitation energy. These results suggest that the proton evaporation channel, albeit weak, may represent a realistic alternative to synthesize new, more neutron rich super heavy nuclei. Keywords: Fusion-evaporation reaction, Proton evaporation, Super heavy nuclei, Cross section

Published
2019
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13. Measurement of the Production Cross Sections for Isotopes of Transfermium Elements in Complete Fusion Reactions with the Subsequent Evaporation of a Proton and Neutrons

Author

A. A. Kuznetsova, E. A. Sokol, A. G. Popeko, V. I. Chepigin, M. S. Tezekbayeva, O. Dorvaux, A. N. Kuznetsov, A. V. Yeremin, A. I. Svirikhin, O. N. Malyshev, B. J. P. Gall, Yu. A. Popov, A. V. Karpov, M. L. Chelnokov, A. Lopez-Martens, P. Moshat, K. Hauschild, A. V. Isaev, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Radiation, Proton, Isotope, 010308 nuclear & particles physics, Transactinide element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Atomic and Molecular Physics, and Optics, Ion, Nuclear physics, 0103 physical sciences, Nuclear fusion, Radiology, Nuclear Medicine and imaging, Neutron, 010306 general physics, Radioactive decay
Abstract

International audience; Experiments aimed at synthesizing and investigating the features of radioactive decay of isotopes of superheavy elements (Z ≥ 110) have been conducted in the Flerov Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research. Complete fusion reactions of an accelerated beam of$^{48}$Ca ions with transactinide targets with the subsequent evaporation of several neutrons from excited compound nucleus are typically used in these experiments. “Exotic” reaction channels with the evaporation of protons and several neutrons may be used to produce more neutron-rich isotopes of superheavy elements. The production cross sections were measured in experiments at the SHELS separator for Db and Rf isotopes produced in xn and pxn channels of the$^{50}$Ti +$^{209}$Bi →$^{259}$Db* reaction. The ratio of cross sections σ(xn)/σ(pxn) was on the order of 100.

Published
2019
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14. New front and back-end electronics for the upgraded GABRIELA detection system

Author

D. E. Katrasev, D. Linget, K. Kessaci, A. N. Kuznetsov, M. S. Tezekbayeva, C. Mathieu, A. V. Isaev, B. Gall, K. Rezynkina, O. N. Malyshev, E. A. Sokol, L. Gibelin, P. Brionnet, A. A. Kuznetsova, O. Dorvaux, K. Hauschild, R. Chakma, A. V. Yeremin, V. Alaphillipe, N. Karkour, Yu. A. Popov, V. I. Chepigin, A. G. Popeko, A. I. Svirikhin, A. Lopez-Martenz, M. L. Chelnokov, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Engineering, Physics - Instrumentation and Detectors, business.industry, Electrical engineering, FOS: Physical sciences, focal plane decay spectroscopy, Instrumentation and Detectors (physics.ins-det), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Digital signal processing, digital electronics, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), particle discrimination, business, Nuclear Experiment, Front (military)
Abstract

The GABRIELA [1] set-up is used at the FLNR to perform detailed nuclear structure studies of transfermium nuclei. Following the modernization of the VASSILISSA separator (SHELS) [2] the GABRIELA detection system has also been upgraded. The characteristics of the upgraded detection system will be presented along with results from some recent electronics tests., Comment: 6 pages, 3 figure, 1 table uncorrected pre-print of EXON 2018 conference proceedings

Published
2018
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15. The study of the properties of spontaneously fissioning transfermium nuclei synthesized in the complete fusion reactions with heavy ions

Author

A. V. Isaev, A. V. Andreev, Y. A. Popov, M. L. Chelnokov, D. Tonev, P. Mosat, V. I. Chepigin, O. N. Malyshev, E. A. Stefanova, A. G. Popeko, Z. Kalaninová, K. Rezynkina, I. N. Izosimov, M. Z. Asfari, A. I. Svirikhin, Julien Piot, K. Hauschild, A. Lopez-Martenz, B. Andel, A. N. Kuznetsov, A. V. Yeremin, M. S. Tezekbayeva, E. A. Sokol, T. M. Schneidman, O. Dorvaux, B. J. P. Gall, A. A. Kuznetsova, 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), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics, History, 010308 nuclear & particles physics, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, Radiochemistry, Nuclear fusion, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 010306 general physics, 01 natural sciences, Computer Science Applications, Education, Ion
Abstract

This report describes a series of experiments aimed on investigating characteristics of spontaneous fission of nuclei in the exotic region of short-lived neutron-deficient isotopes with Z ≥ 100. Unique data on the decay properties of neutron-deficient isotopes 244,246Fm, 250No, 252No, 254Rf and 256Rf produced in the complete fusion reactions with accelerated heavy ions 40Ar + 206,208Pb → 246,248Fm*, 48Ca + 204,206Pb → 252,254No*, 50Ti + 206,208Pb →256,258Rf* were obtained in experiments at the VASSILISSA (SHELS) separator combined with a neutron detector. This report describes a series of experiments aimed on investigating characteristics of spontaneous fission of nuclei in the exotic region of short-lived neutron-deficient isotopes with Z ≥ 100. Unique data on the decay properties of neutron-deficient isotopes 244,246Fm, 250No, 252No, 254Rf and 256Rf produced in the complete fusion reactions with accelerated heavy ions 40Ar + 206,208Pb → 246,248Fm*, 48Ca + 204,206Pb → 252,254No*, 50Ti + 206,208Pb →256,258Rf* were obtained in experiments at the VASSILISSA (SHELS) separator combined with a neutron detector. ispartof: 27TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE (INPC2019) vol:1643 ispartof: 27th International Nuclear Physics Conference (INPC) location:SCOTLAND, Glasgow date:29 Jul - 2 Aug 2019 status: published

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