123 results on '"D. Huss"'
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2. Short to Medium-Reach Wireline Transceivers Using Single-Ended Signaling, Clock Forwarding, and Spatial Encoding for Die-to-Die Applications.
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Scott D. Huss, Chris Moscone, Mark Summers, James Vandersand, Kelvin McCollough, and Randall Smith
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- 2023
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3. A 480Gb/s/mm 1.7pJ/b Short-Reach Wireline Transceiver Using Single-Ended NRZ for Die-to-Die Applications.
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Kelvin McCollough, Scott D. Huss, James Vandersand, Randall Smith, Chris Moscone, and Qazi Omar Farooq
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- 2021
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4. Preparation, Structure, and Reactivity of Pseudocyclic β‐Trifluorosulfonyloxy Vinylbenziodoxolone Derivatives
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Pavel S. Postnikov, Scott M. Larson, Mekhman S. Yusubov, Gregory T. Rohde, Tanner J. Schumacher, Gunnar B. Frahm, Tsugio Kitamura, Christopher D. Huss, Akio Saito, Zachary S. Gardner, Akira Yoshimura, Mackenzie Liebl, Viktor V. Zhdankin, and Mattew W. Luedtke
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Chemistry ,Michael reaction ,Organic chemistry ,Reactivity (chemistry) ,General Chemistry - Abstract
University of Minnesota M.S. thesis. June 2021. Major: Chemistry. Advisors: Viktor Zhdankin, Akira Yoshimura. 1 computer file (PDF); vi, 93 pages.
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- 2021
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5. 2-Iodosylbenzoic acid activated by trifluoromethanesulfonic anhydride: efficient oxidant and electrophilic reagent for preparation of iodonium salts
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Akio Saito, Christopher D. Huss, Tsugio Kitamura, Viktor V. Zhdankin, and Akira Yoshimura
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Reaction conditions ,chemistry.chemical_compound ,Chemistry ,Reagent ,Trifluoromethanesulfonic anhydride ,Electrophile ,Materials Chemistry ,Organic chemistry ,General Chemistry ,Catalysis - Abstract
2-Iodosylbenzoic acid in the presence of trifluoromethanesulfonic anhydride is an efficient oxidant and electrophilic reagent useful for preparation of the corresponding alkenyl and aryliodonium salts. Compared to the previously reported methods of electrophilic activation of 2-iodosylbenzoic acid, this procedure is compatible with acid-sensitive functional groups, requires mild reaction conditions, and affords products in higher yields.
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- 2021
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6. An efficient model for twisted-pair cables with discontinuities and stubs for discrete time simulations.
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Scott D. Huss and John Bennett
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- 2001
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7. A DSP based 10BaseT/100BaseTX Ethernet transceiver in a 1.8 V, 0.18 μm CMOS technology.
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Scott D. Huss, Mark Mullen, C. Thomas Gray, Randall Smith, Mark Summers, Jeff Shafer, Pat Heron, Tim Sawinska, and Joe Medero
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- 2001
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8. Synthesis of arylbenziodoxoles using pseudocyclic benziodoxole triflate and arenes
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Christopher D. Huss, Scott M. Larson, Akio Saito, Victor N. Nemykin, Gregory T. Rohde, Akira Yoshimura, Viktor V. Zhdankin, Mekhman S. Yusubov, and Gunnar B. Frahm
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Benziodoxole ,Chemistry ,Organic Chemistry ,Organic chemistry ,Trifluoromethanesulfonate - Published
- 2020
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9. A Mathematical and Lumped-Element Model for Multiple Cascaded Lossy Transmission Lines with Arbitrary Impedances and Discontinuities.
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Scott D. Huss
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- 1995
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10. Optimal Ordering of Analog Integrated Circuit Tests to Minimize Test Time.
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Scott D. Huss and Ronald S. Gyurcsik
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- 1991
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11. MEASUREMENT OF D-MESON BRANCHING RATIOS
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P. Vilain, M. Schouten, P. K. Malhotra, J. F. Baland, R. Contri, J. Schiedmayer, S. Kitamura, R. Bizzarri, P. Stamer, J. R. Fry, H. Nowak, Speranza Falciano, M. Mazzucato, P. Hughes, P. Landron De Guevara, Simonetta Gentile, Sten Hellman, S. J. Colwill, P. V. Chliapnikov, Ugo Gasparini, C. Troncon, R. Di Marco, J. Hanton, J. Dolbeau, R. Hamatsu, A. Michalon, W. Bartl, Yu Fisyak, Rene Brun, Fernand Grard, J. Panella Comellas, T. Handler, D. Crennell, E. Di Capua, M. Aguilar-Benitez, U. Trevisan, C. Fernandez, C. Pinori, S. N. Ganguli, B. M. Whyman, E. Castelli, J. Richardson, A. T. Goshaw, P. Wright, M. Messa, M. Iori, G. Neuhofer, V. M. Begalli, W. M. Bugg, F. Marzano, V. V. Kniazev, Alan Poppleton, Y. Iga, E. P. Kistenev, W.W.M. Allison, L. Montanet, M. MacDermott, E. L. Hart, L. de Billy, Louis Lyons, M. C. Touboul, I. Kita, A. De Angelis, H. Briand, L. Haupt, B. Sellden, M. A. Houlden, W. Struczinski, H. Leutz, K. Shankar, S. O. Holmgren, P. Poropat, G. D. Patel, K. Rasner, Jose M Hernandez, R.J. Plano, P. Pilette, Atul Gurtu, T. Yamagata, D. Huss, M. Pernicka, E. Jegham, Josef Hrubec, S. Rinaudo, B. Vonck, S. Squarcia, P. Mason, C. Defoix, G. Piredda, F. Fontanelli, C. Fisher, S. Nilson, M. Laloum, N. Colino, C. Caso, G. Otter, H. Rohringer, K. Roberts, Torbjoern Moa, E. Johansson, V. Perevozchikov, P. Belliere, Paolo Checchia, F. Marchetto, R. Schulte, V.A. Uvarov, S. Reucroft, Giorgio Borreani, R. Raghavan, G. Marel, H. K. Nguyen, J. Dumarchez, C. Willmoit, G. Ransone, Gianni Zumerle, V. Canale, N. Oshima, and M. E. Michalon-Mentzer
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Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Particle physics ,Hadron ,D meson ,Charm (quantum number) ,Branching (polymer chemistry) - Abstract
Charm data from 360 GeV/c π− p interactions are used to give results on D-meson branching ratios. The analysis is based on 114 charm events containing 183 observed charm particle decays. We present topological branching ratios and decay multiplicities, as well as the following inclusive branching ratios of D-mesons: B( D ± → K ∓ + anything ) = 0.16 −0.07 +0.08 , if B( D 0 → K ± + anything ) = 0.44 −0.10 +0.11 , ifB( D ± → e ± + 2,4 (rmcharged hadrons) = 0.07 −0.05 ++0.08 , B( D 0 → e ± + anything ) = 0.17 −0.06 +0.08 .
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- 2016
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12. Ethical and Legal Issues
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David A. Smith and Randall D. Huss
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Power of attorney ,Order (exchange) ,business.industry ,Process (engineering) ,Political science ,Legal guardian ,Health care ,Liability ,Living Wills ,Elder abuse ,Public relations ,business - Abstract
Ethical and legal issues are common in long-term care and are separate, but closely interrelated. Health care ethics is the application of values (patient, caregiver and societal) to the process of clinical decision-making. This process requires the intellectual and empathetic weighing of values, facts and prognostications in order to produce a supportable decision. Clinicians often encounter competing values, e.g., the right of self-determination of an individual versus the interests of society as a whole, and must take into consideration the facts, as well as the likelihood and consequences of various outcomes.
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- 2016
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13. AGE TRENDS OF VARIOUS COMPONENTS OF BODY COMPOSITION AND FUNCTIONAL CHARACTERISTICS IN WOMEN AGED 20-69 YEARS*
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W. D. Huss, Dena C. Cederquist, Janet A. Wessel, and A. Ufer
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Geriatrics ,Aging ,medicine.medical_specialty ,Anthropometry ,business.industry ,General Neuroscience ,Physiology ,General Biochemistry, Genetics and Molecular Biology ,Respiratory Function Tests ,Cholesterol ,Metabolism ,History and Philosophy of Science ,Heart Function Tests ,Body Composition ,Blood cholesterol ,Humans ,Medicine ,Female ,Women ,Composition (visual arts) ,business - Published
- 2006
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14. Enhancement of hyperon production at central rapidity in 158AGeV/cPb–Pb collisions
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NA57 Collaboration, F Antinori, P Bacon, A Badalà, R Barbera, A Belogianni, W Beusch, I J Bloodworth, M Bombara, G E Bruno, S A Bull, R Caliandro, M Campbell, W Carena, N Carrer, R F Clarke, A Dainese, D Di Bari, S Di Liberto, R Divià, D Elia, D Evans, G A Feofilov, R A Fini, P Ganoti, B Ghidini, G Grella, H Helstrup, K F Hetland, A K Holme, D Huss, A Jacholkowski, G T Jones, P Jovanovic, A Jusko, R Kamermans, J B Kinson, K Knudson, V Kondratiev, I Králik, A Kravčáková, P Kuijer, V Lenti, R Lietava, R A Loconsole, G Løvhøiden, V Manzari, M A Mazzoni, F Meddi, M E Michalon-Mentzer, A Michalon, M Morando, P I Norman, A Palmeri, G S Pappalardo, B Pastirčák, R J Platt, E Quercigh, F Riggi, D Röhrich, G Romano, K Šafařík, L Šándor, E Schillings, G Segato, M Sené, R Sené, W Snoeys, F Soramel, M Spyropoulou-Stassinaki, P Staroba, M Thompson, R Turrisi, T S Tveter, J Urbán, P van de Ven, P Vande Vyvre, A Vascotto, T Vik, O Villalobos Baillie, L Vinogradov, T Virgili, M F Votruba, J Vrláková, P Závada, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and NA57
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Physics ,Nuclear and High Energy Physics ,010308 nuclear & particles physics ,Nuclear Theory ,Hyperon ,FOS: Physical sciences ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Strangeness ,Lambda ,01 natural sciences ,Omega ,Nuclear physics ,0103 physical sciences ,Transverse momentum ,Rapidity ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,010306 general physics ,Nucleon ,Nuclear Physics - Abstract
Results are presented on hyperon and antihyperon production in Pb-Pb, pPb and pBe collisions at 158 GeV/c per nucleon. Lambda, Xi and Omega yields have been measured at central rapidity and medium transverse momentum as functions of the centrality of the collision. Comparing the yields in Pb-Pb to those in pBe interactions, strangeness enhancement is observed. The enhancement increases with the centrality and with the strangeness content of the hyperons, reaching a factor of about 20 for the Omega in the central Pb-Pb collisions., submitted to J. Phys. G.: Nucl. Part. Phys
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- 2006
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15. Histological preparation of developing vestibular otoconia for scanning electron microscopy
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D. Huss and J.D. Dickman
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Male ,Endolymph ,Coturnix ,Buffers ,Quail ,Acetone ,Embryonic and Fetal Development ,Fixatives ,Otolithic Membrane ,chemistry.chemical_compound ,Pregnancy ,biology.animal ,Utricle ,medicine ,Animals ,Saccule and Utricle ,Otolith ,Vestibular system ,HEPES ,biology ,General Neuroscience ,Histology ,Anatomy ,medicine.anatomical_structure ,chemistry ,Glutaral ,Microscopy, Electron, Scanning ,Biophysics ,Female ,sense organs ,Glutaraldehyde - Abstract
The unique nature of vestibular otoconia as calcium carbonate biominerals makes them particularly susceptible to chemical deformation during histological processing. We fixed and stored otoconia from all three otolith endorgans of embryonic, hatchling and adult Japanese quail in glutaraldehyde containing either phosphate or non-phosphate buffers for varying lengths of time and processed them for scanning electron microscopy. Otoconia from all age groups and otolith endorgans processed in 0.1 M phosphate buffer (pH 7.4) showed abnormal surface morphology when compared to acetone fixed controls. Otoconia processed in 0.1 M sodium cacodylate or HEPES buffered artificial endolymph (pH 7.4) showed normal morphology that was similar to controls. The degree of otoconial deformation was directly related to the time exposed to phosphate buffer. Short duration exposure produced particulate deformations while longer exposures resulted in fused otoconia that formed solid sheets. Otoconial surface deformation and fusing was independent of the glutaraldehyde component of the histological processing. These findings should help vestibular researchers to develop appropriate histological processing protocols in future studies of otoconia.
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- 2003
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16. Strange baryon production in Pb-Pb collisions at 158AGeV/c
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R.A. Loconsole, G. Romano, K. Šafařík, Michael A. Thompson, M. Henriquez, K. Fanebust, Petr Zavada, Davide Elia, Vito Manzari, K. Knudson, W. Beusch, M.F. Votruba, D. Huss, Pavel Staroba, G.F. Segato, F. Fayazzadeh, M. Morando, M. A. Mazzoni, L. Šándor, V. Lenti, Rocco Caliandro, B. Ghidini, I. J. Bloodworth, J. Ftáčnik, Ivan Kralik, Haavard Helstrup, E. Quercigh, David H. Evans, A.K. Holme, T. Vik, Domenico Di Bari, Dieter Røhrich, P.I. Norman, G. T. Jones, O. Villalobos Baillie, J.B. Kinson, M.E. Michalon-Mentzer, N Carrer, Gunnar Løvhøiden, S. Di Liberto, G. Grella, R. A. Fini, A. Michalon, B. Pastirčák, Franco Meddi, R. Lietava, Marisa Gulino, Tiziano Virgili, Federico Antinori, Giorgio Torrieri, Jozef Urban, and A. Jacholkowski
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Baryon ,Physics ,Nuclear physics ,Nuclear and High Energy Physics ,chemistry ,Nuclear Theory ,Production (economics) ,chemistry.chemical_element ,Beryllium ,Nuclear Experiment ,Lambda ,Omega ,Deconfinement - Abstract
The experiment WA97 is dedicated to the study of strange baryon production in Pb-Pb interactions at SPS energy. Results on the production of strange and multistrange baryons at midrapidity in Pb-Pb at 158 A GeV c-1 are reported and compared with those from p-Pb and p-Be reactions at the same energy. The evidence for deconfinement emerging from the observed pattern of strange baryon production is discussed.
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- 2001
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17. The data-acquisition system for the CMS tracker beam tests
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Piero Giorgio Verdini, Jean-Charles Fontaine, F. Drouhin, D. Huss, Fabien Jeanneau, A. Pallars, B. Schwaller, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette
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Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Synchronizing ,Disk formatting ,Data acquisition ,Nuclear Energy and Engineering ,Nuclear electronics ,Computer data storage ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Electronic engineering ,Electrical and Electronic Engineering ,business ,Compact Muon Solenoid ,Computer hardware - Abstract
This paper describes the conception and the development of a real-time data-acquisition system for prototype detectors of the Tracker being designed for the compact muon solenoid (CMS) experiment at the Large Hadron Collider of CERN, European Laboratory for Particle Physics, Geneva, Switzerland. The rationale for the development of a dedicated data-acquisition system was the need to perform two fundamental beam tests (the "Milestone Barrel 1" and "Milestone Forward 1"), with large-scale prototypes of the detectors planned as the baseline design. The number of readout channels, the complexity of the readout electronics, and the stringent requirements of the milestone tests mandated that a thorough understanding of the issues related to the physics of the detectors themselves be coupled with the application of leading-edge electronic and software engineering technologies. The implementation described in this paper is based on a distributed architecture. An event builder CPU handles the two main tasks of synchronizing a variable number of front-end processors and formatting the data in preparation for the transfer to a dedicated high-performance storage system, while the front-end processors handle the hardware and the real-time readout. Additional workstations are used to decouple the actual task of transferring the data files and monitoring the detector performance on-line from the readout farm. The system has been successfully operated during the two aforementioned Milestone tests, allowing the CMS Tracker collaboration to pass them, with the simultaneous readout of up to 40000 detector channels. The results of the two Milestones have led to the compilation of the "Tracker Technical Design Report". Subsequently, the same readout system has been used for a number of other beam tests, and it has formed the basis for the development of further, more advanced data-acquisition systems for the new readout electronic of the CMS Tracker.
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- 2000
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18. Enhancement of strange and multi-strange baryons in central Pb−Pb interactions at 158 GeV/c per nucleon
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O. Villalobos Baillie, Giorgio Torrieri, Jozef Urban, Domenico Di Bari, Rocco Caliandro, K. Fanebust, M.F. Votruba, Trine Spedstad Tveter, K. Knudson, Federico Antinori, Ivan Kralik, R.A. Loconsole, N. Carrer, P.I. Norman, G. T. Jones, J. Ftáčnik, M. Morando, L. Šándor, M. A. Mazzoni, Michael A. Thompson, Gunnar Løvhøiden, I. J. Bloodworth, B. Ghidini, Petr Zavada, R. A. Fini, A. Michalon, S. Di Liberto, Franco Meddi, David H. Evans, G.F. Segato, G. Grella, E. Quercigh, B. Pastirčák, A. Jacholkowski, Tiziano Virgili, Davide Elia, M.E. Michalon-Mentzer, R. Lietava, J.B. Kinson, Vito Manzari, H. Bakke, W. Beusch, Pavel Staroba, D. Huss, H. Helstrup, G. Romano, T.F. Thorsteinsen, K. Šafařík, V. Lenti, and A.K. Holme
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Baryon ,Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Strange matter ,Particle physics ,Strange quark ,Hyperon ,Nucleon ,Omega baryon ,Lambda baryon ,Xi baryon - Published
- 2000
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19. Hyperon and negative particle production at central rapidity in proton-Beryllium interactions at 158 GeV/c
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Giorgio Torrieri, Jozef Urban, R.A. Loconsole, J. Ftáčnik, O. Villalobos Baillie, Federico Antinori, N. Carrer, W. Beusch, Pavel Staroba, M. Morando, B. Ghidini, Davide Elia, M.F. Votruba, J.B. Kinson, R. A. Fini, V. Lenti, D. Huss, Petr Zavada, Trine Spedstad Tveter, I. J. Bloodworth, G. Romano, Franco Meddi, A.K. Holme, A. Michalon, Vito Manzari, P.I. Norman, G. T. Jones, G. Grella, A. Jacholkowski, M. A. Mazzoni, K. Šafařík, H. Bakke, T.F. Thorsteinsen, L. Šándor, David H. Evans, Ivan Kralik, Michael A. Thompson, B. Pastirčák, Gunnar Løvhøiden, G.F. Segato, E. Quercigh, M.E. Michalon-Mentzer, Haavard Helstrup, T. Virgili, Domenico Di Bari, K. Knudson, S. Di Liberto, R. Lietava, K. Fanebust, and Rocco Caliandro
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Meson ,Nuclear Theory ,Hadron ,Hyperon ,Elementary particle ,Hyperons ,Strangeness ,Nuclear physics ,Baryon ,Rapidity ,Quark Gluon Plasma ,Nuclear Experiment - Abstract
A study of the strangeness enhancement in Lead-Lead collisions with respect to proton-induced reactions is being carried out at the CERN SPS by the WA97 experiment: up to now, data from proton-Lead collisions have been used as a reference sample. In this paper we report on a study of particle production in proton-Beryllium collisions. These collisions are expected to constitute a better reference sample than p-Pb, because of the lighter target. The analysis of hyperon and negative particle production is presented and the results are compared with those previously obtained from Pb-Pb and p-Pb collisions.
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- 1999
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20. Transverse mass spectra of strange and multiply—strange particles in Pb—Pb collisions at 158 A GeV/c
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Franco Meddi, H. Bakke, Tiziano Virgili, Ivan Kralik, M.F. Votruba, Federico Antinori, M. A. Mazzoni, K. Knudson, R.A. Loconsole, Davide Elia, N. Carrer, Michael A. Thompson, V. Lenti, A.K. Holme, G. Grella, L. Šándor, I. J. Bloodworth, M. Morando, Gunnar Løvhøiden, G.F. Segato, E. Quercigh, O. Villalobos Baillie, Trine Spedstad Tveter, Pavel Staroba, B. Ghidini, M.E. Michalon-Mentzer, Haavard Helstrup, K. Šafařík, P.I. Norman, G. T. Jones, J. Urban, S. Di Liberto, R. A. Fini, A. Michalon, B. Pastirčák, R. Lietava, W. Beusch, K. Fanebust, A. Jacholkowski, Vito Manzari, D. Di Bari, D. Huss, Giorgio Torrieri, Rocco Caliandro, J.B. Kinson, David H. Evans, Petr Zavada, J. Ftáčnik, G. Romano, and T.F. Thorsteinsen
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Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Inverse ,Transverse mass ,Impact parameter ,Nuclear Experiment ,Centrality ,Omega baryon ,Lambda baryon ,Omega ,Xi baryon - Abstract
The WA97 experiment has measured the transverse mass \(({m_{\mathrm T}})\) spectra for negative hadrons (\(\mathrm{h}^-\)) and strange particles produced at mid–rapidity in Pb–Pb collisions. The increased statistics of analysed data samples allowed us to perform a study of the spectra of \({\rm K_S^0}\), \(\mathrm{\Lambda}\), \(\mathrm{\Xi}\), \(\mathrm{\Omega}\) and \(\mathrm{h}^-\) as a function of the collision centrality. The data, which correspond to the most central 40% of the total inelastic cross section, have been divided into four centrality classes according to the estimated number of nucleons taking part in the collision. The \(m_{\mathrm T}\) spectra, analysed separately for each centrality bin, exhibit only weak (\(\leq\) 15%) centrality dependence. The deviation of the \(\mathrm{\Omega}\) inverse slope from the linear dependence on the particle mass is confirmed even for the most central Pb–Pb collisions.
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- 1999
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21. Large scale test of wedge shaped micro strip gas counters
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J.-M. Brom, C. Vander Velde, V. Nagaslaev, T. Beckers, Piero Giorgio Verdini, R. Metri, G. Smadja, V. Zhukov, D. Pandoulas, W. Van Doninck, F. Udo, Oliver Pooth, B. Schwaller, J. Croix, S. Barthe, S. Bachmann, G. Schuster, P. Schmitz, Amina Zghiche, Bruno Wittmer, C. Hoffman, Hans-Jürgen Simonis, Rasmus Ischebeck, C. Camps, S. Weseler, J.M Helleboid, Pascal Vanlaer, K. Lübelsmeyer, H. Szczesny, K. Bernier, V. Chorowicz, K. Hangarter, W.H. Thümmel, S. Tissot, M. Hoffer, Th. Müller, A. Schultz von Dratzig, V. Commichau, E. Ruoff, Abdenour Lounis, T. Todorov, A. Bondar, C. Racca, J. P. Coffin, Fabien Jeanneau, W. Geist, W. Beaumont, I. Boulogne, Günter Flügge, Laurent Mirabito, Reinhard W. Schulte, S. Atz, R. Siedling, M. Bozzo, M. R. Kapp, Y. Benhammou, D. Neuberger, M. Krauth, C. Maazouzi, A. Sauer, Jean-Charles Fontaine, A. Pallares, D. Huss, V. Titov, D. Knoblauch, M. Tonutti, J. Kremp, J.P. Schunk, K. Kärcher, M. Petertill, Th. Henkes, F. Beißel, Pierre Juillot, Othmane Bouhali, J. Stefanescu, Ch.Van Dyck, D. Macke, H. Eberlé, P. Blüm, L. Shektman, R. Wortmann, Ulrich Goerlach, Didier Contardo, F. Drouhin, S. Junghans, M. Ackermann, M. Kräber, V. Aulchenko, K. Gundlfinger, Andreas Nowack, J. De Troy, A. M. Bergdolt, L. Van Lancker, M.-H. Sigward, Aysen Tatarinov, I. Ripp, B. Baiboussinov, and R. Haroutunian
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Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Muon ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Wedge (geometry) ,Gaseous particle detectors ,Particle detector ,Chemistry ,Optics ,Measuring instrument ,High Energy Physics::Experiment ,business ,Engineering sciences. Technology ,Instrumentation ,Image resolution ,Beam (structure) - Abstract
In order to check the system aspects of the forward-backward MSGC tracker designed for the future CMS experiment at LHC: 38 trapezoidal MSGC counters assembled in six multi-substrates detector modules were built and exposed to a muon beam at the CERN SPS. Results on the gain uniformity along the wedge-shaped strip pattern and across the detector modules are shown together with measurements of the detection efficiency and the spatial resolution. (C) 1999 Elsevier Science B.V. All rights reserved.
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- 1999
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22. Production of hyperons and anti-hyperons in heavy-ion collisions at SPS: Experiments at the CERN Omega spectrometer
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G. Romano, A. Volte, Leonardo Paolo Rossi, Håvard Helstrup, R. Lietava, G. Vassiliadis, M. Morando, N. Carrer, P. Middelkamp, Anton Jusko, J.A. Lien, B. Sopko, T. Storås, Gunnar Løvhøiden, K.L. Norman, F. Posa, I. Králik, A. Di Mauro, Petr Zavada, J. Šťastný, M. Luptak, Vito Manzari, Paolo Martinengo, O. Villalobos Baillie, R. A. Ricci, V. Lenti, G.F. Segato, M. Vaníčková, J.B. Kinson, Rocco Caliandro, C. Salvo, Giovanni Darbo, J. Ftacnik, Jean-Charles Fontaine, E. Quercigh, A. Kirk, J. Bohm, G. Grella, E. Chesi, Bianca Osculati, T. Virgili, A. Diaczek, M. Venables, H. Rotscheidt, S. Simone, W. Beusch, C. Voltolini, M.E. Michalon-Mentzer, S. Saladino, J. P. Davies, K. Šafařík, V.A. Kachanov, K. Knudson, A.K. Holme, Alberto Andrighetto, D. Huss, P. Sennels, R. A. Fini, T. Kachelhoffer, A. Michalon, F. Pellegrini, S. Szafran, A. Jacholkowski, M. T. Muciaccia, N. Armenise, Michele Guida, K. Piska, J. C. Lassalle, Gianfranca De Rosa, W. Geist, P. Sené, K. Fanebust, L. Sandor, T.F. Thorsteinsen, D. Elia, J. Bán, P. Jovanovic, E. Nappi, David H. Evans, M. G. Catanesi, I. Mácha, Dario Barberis, A. Singovski, M. Dameri, Franco Meddi, T. Scognetti, Federico Antinori, Erik H.M. Heijne, D. Di Bari, Eugenio Cantatore, M. A. Mazzoni, B. Ghidini, E. Andersen, F. Navach, M. Sené, M. Campbell, G. Tomasicchio, J. Urban, M.F. Votruba, W. Klempt, H. Beker, V. Mack, Pavel Staroba, R. A. Loconsole, S. Di Liberto, B. Pastirčák, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), WA97, and Heyd, Yvette
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Strange quark ,Large Hadron Collider ,Spectrometer ,[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear Theory ,Hyperon ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Omega ,Atomic and Molecular Physics, and Optics ,Nuclear physics ,Heavy ion ,Nuclear Experiment - Abstract
Recent results from the CERN Omega spectrometer on the enhancement of strange and multiply strange particle production in nucleus-nucleus with respect to proton-nucleus collisions are summarized. In particular, the new data from the WA97 experiment on Ω, Ξ and Λ production in PbPb and p-Pb collisions are presented and discussed.
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- 1999
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23. A study of various coatings for MSGCs
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A. Zghiche, D Huss, J.P Schunck, V Mack, Jean-Charles Fontaine, and J.M. Brom
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Physics ,Nuclear and High Energy Physics ,Borosilicate glass ,Measuring instrument ,Current (fluid) ,Composite material ,Instrumentation ,Particle detector ,Microstrip - Abstract
We present some test results of microstrip gas chambers with boro-silicate glass substrates, which were coated before the photolithographic processing. We compare various coatings: sputtered S8900 glass and three coatings made by industrial companies (SURMET, VITO and ICMC). The composition and electrical properties of the different materials are discussed. Gain, current and rate capability are compared with those obtained from identical uncoated glass substrates.
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- 1999
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24. An important step forward in continuous spectroscopic imaging of ionising radiations using ASICs
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P. Fessler, G. Prevot, J.P. Coffin, H Eberlé, J.R. Lutz, Francois Krummenacher, B. Schwaller, Benoit Hilt, C. de Raad Iseli, D Huss, M.H Sigward, C Voltolini, and A. Renouprez
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Physics ,Nuclear and High Energy Physics ,Offset (computer science) ,Application-specific integrated circuit ,Statistical noise ,Detector ,Electronic engineering ,Image processing ,Dead time ,Instrumentation ,Charge amplifier ,Voltage - Abstract
Characterization results are given for an original ASIC allowing continuous acquisition of ionising radiation images in spectroscopic mode. Ionising radiation imaging in general and spectroscopic imaging in particular must primarily be guided by the attempt to decrease statistical noise, which requires detection systems designed to allow very high counting rates. Any source of dead time must therefore be avoided. Thus, the use of on-line corrections of the inevitable dispersion of characteristics between the large number of electronic channels of the detection system, shall be precluded. Without claiming to achieve ultimate noise levels, the work described is focused on how to prevent good individual acquisition channel noise performance from being totally destroyed by the dispersion between channels without introducing dead times. With this goal, we developed an automatic charge amplifier output voltage offset compensation system which operates regardless of the cause of the offset (detector or electronic). The main performances of the system are the following: the input equivalent noise charge is 190 e rms (input non connected, peaking time 500 ns), the highest gain is 255 mV/fC, the peaking time is adjustable between 200 ns and 2 μs and the power consumption is 10 mW per channel. The agreement between experimental data and theoretical simulation results is excellent.
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- 1999
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25. Effects of thermal neutrons on MSGCs
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D Huss, C. Voltolini, J.M. Brom, K. Bernier, Fabien Jeanneau, V Mack, J. P. Schunck, and Jean-Charles Fontaine
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Nuclear reaction ,Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Radiation flux ,Neutron flux ,Measuring instrument ,Neutron ,Irradiation ,Instrumentation ,Particle detector ,Neutron temperature - Abstract
To investigate the effects of neutrons on MSGCs, the gain of several detectors was measured before and after irradiation with a flux of 10 6 neutrons / cm 2 s in the CEA (Saclay) ISIS reactor facility. On one of these prototypes the induced activity was measured after the irradiation.
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- 1998
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26. A, Ξ and Ω enhancement at central rapidity in Pb-Pb collisions at 158A GeV/ c
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Rocco Caliandro, A. Diaczek, K. Fanebust, J. Urban, B.T.H. Knudsen, A. Singovski, Federico Antinori, Michael A. Thompson, S. Saladino, A.K. Holme, G. Tomasicchio, N. Carrer, Eugenio Cantatore, M. A. Mazzoni, Leonardo Paolo Rossi, B. Ghidini, G. Rosa, Erik H.M. Heijne, G. Vassiliadis, G. Romano, J. C. Lassalle, J.B. Kinson, T.F. Thorsteinsen, D. Di Bari, V. Lenti, Giovanni Darbo, E. Chesi, Bianca Osculati, M. Morando, C. Salvo, M. Dameri, Pavel Staroba, M.F. Votruba, F. Navach, N. Armenise, Anton Jusko, K. Piska, E. Andersen, W. Klempt, Eugenio Nappi, H. Bakke, Michele Guida, F. Posa, Petr Zavada, K. Šafařík, Franco Meddi, D. Elia, A. Jacholkowski, I. Králik, Haavard Helstrup, Paolo Martinengo, T. Scognetti, W. Snoeys, M. Sené, M. Campbell, J. Bán, Dario Barberis, T. Virgili, A. Kirk, B.C. Earl, S. Simone, W. Beusch, A. Volte, R. Lietava, R. Sené, K. Knudson, O. Villalobos Baillie, R. A. Ricci, I. J. Bloodworth, H. Beker, D. Huss, V. Mack, P. Middelkamp, Vito Manzari, David H. Evans, M. G. Catanesi, S. Di Liberto, B. Pastirčák, R. A. Loconsole, J. Ftacnik, Giorgio Torrieri, M. T. Muciaccia, Trine Spedstad Tveter, V.A. Kachanov, P.I. Norman, G. T. Jones, P. Jovanovic, Gunnar Løvhøiden, L. Šándor, F. Pellegrini, R. A. Fini, A. Michalon, J. Bohm, M. Venables, M. Luptak, G.F. Segato, E. Quercigh, M.E. Michalon-Mentzer, Jean-Charles Fontaine, S. Szafran, H. Rotscheidt, T. Kachelhoffer, and G. Grella
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Nuclear physics ,Physics ,Particle physics ,Nuclear Theory ,Quark–gluon plasma ,Hyperon ,Transverse mass ,Rapidity ,Strangeness ,Nuclear Experiment ,Omega ,Spectral line - Abstract
A, Ξ and Ω yields and transverse mass spectra have been measured in Pb-Pb and p-Pb collisions at 158A GeV/c. The yields in Pb-Pb interactions are presented as a function of the collision centrality and compared with those obtained from p-Pb collisions. Strangeness enhancement is observed which increases with centrality and with the strangeness content of the hyperon.
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- 1998
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27. Λ, Ξ and Ω production in PbPb collisions at 158 A GeV/c
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Michael A. Thompson, S. Saladino, A.K. Holme, Dario Barberis, J. C. Lassalle, Petr Zavada, D. Di Bari, Gunnar Løvhøiden, M. T. Muciaccia, M. Morando, S. Simone, R. A. Fini, L. Šándor, F. Pellegrini, Anton Jusko, G. Grella, K. Knudson, W. Beusch, R. A. Loconsole, N. Carrer, V.A. Kachanov, A. Michalon, S. Szafran, A. Di Mauro, D. Huss, M.E. Michalon-Mentzer, I. Králik, P. Middelkamp, Giovanni Darbo, Paolo Martinengo, M. Luptak, G.F. Segato, F. Posa, E. Quercigh, J. Ftacnik, E. Chesi, Rocco Caliandro, P. Jovanovic, A. Kirk, Trine Spedstad Tveter, G. Romano, A. Singovski, E. Andersen, N. Armenise, W. Snoeys, B. Ghidini, H. Beker, T.F. Thorsteinsen, G. Rosa, H. Rotscheidt, David H. Evans, Jean-Charles Fontaine, P.I. Norman, G. T. Jones, M. Dameri, M. G. Catanesi, Vito Manzari, J. Bohm, V. Mack, J. Bán, Franco Meddi, M. Sené, A. Diaczek, F. Navach, M. Campbell, S. Di Liberto, A. Jacholkowski, M. Venables, T. Kachelhoffer, G. Tomasicchio, Leonardo Paolo Rossi, O. Villalobos Baillie, R. A. Ricci, B. Pastirčák, T. Scognetti, Pavel Staroba, M.F. Votruba, W. Klempt, Eugenio Nappi, Federico Antinori, Erik H.M. Heijne, J. Urban, K. Fanebust, B. Osculati, M.A. Mazzoni, E. Cantatore, J.B. Kinson, A. Volte, R. Lietava, R. Sené, K. Piska, D. Elia, T. Virgili, I.G. Bloodworth, V. Lenti, Michele Guida, C. Salvo, Håvard Helstrup, G. Vassiliadis, and K. Šafařík
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Silicon pixel detectors ,Hyperon ,Spectral line ,Baryon ,Nuclear physics ,Particle ,Transverse mass ,Rapidity ,Quark Gluon Plasma ,Nuclear Experiment - Abstract
Enhanced production of strange baryons and anti-baryons at central rapidity in S-W and S-z.sbnd;S with respect to p-A reactions has been reported by the CERN experiments WA85 and WA94. The WA97 experiment is extending such a study to Pb Pb collisions making use of the newly developed silicon pixel detectors. Results on Λ, Ξ − and Ω − production in Pb Pb collisions at 158 A GeV/ c at central rapidity are presented. Transverse mass spectra and particle ratios are presented. Hyperon yields are given as a function of the collision centrality and compared with those obtained from p-Pb collisions using the same experimental setup.
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- 1998
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28. Hyperon production in Pb+Pb collisions at 158 A GeV/c
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S. Szafran, Anton Jusko, N. Armenise, Michele Guida, I. Králik, P. Jovanovic, S. Simone, K. Šafařík, Ph. Leruste, H. Helstrup, J. Ftacnik, P. Middelkamp, J. Bán, Paolo Martinengo, E. Nappi, N. Carrer, Leonardo Paolo Rossi, C. Voltolini, Federico Antinori, Håvard Helstrup, Pavel Staroba, Vito Manzari, J.A. Lien, G. Vassiliadis, V. Lenti, K. Fanebust, M. Luptak, G.F. Segato, Eugenio Cantatore, J. Šťastný, K. Knudson, M. Vaníčková, M. A. Mazzoni, S. Di Liberto, L. Lopez, B. Ghidini, A. Singovski, W. Geist, Erik H.M. Heijne, M. Morando, A. Jacholkowski, J.M. Brom, E. Quercigh, R. Blaes, P. Sennels, F. Posa, G. Romano, A. Volte, R. Lietava, R. Sené, B. Pastirčák, A.K. Holme, Alberto Andrighetto, G. Grella, K. Piska, J. L. Narjoux, T.F. Thorsteinsen, E. Andersen, Jean-Charles Fontaine, H. Rotscheidt, F. Navach, M. Dameri, D. Elia, L. Šándor, F. Pellegrini, M. T. Muciaccia, J. P. Davies, O. Villalobos Baillie, R. A. Ricci, David H. Evans, J. C. Lassalle, Petr Zavada, C. Salvo, I. Mácha, Dario Barberis, A. Di Mauro, K.L. Norman, G. Tomasicchio, Giovanni Darbo, V.A. Kachanov, T. Kachelhoffer, E. Chesi, Bianca Osculati, T. Storås, A. Kirk, M. G. Catanesi, B. R. French, M. Sené, B. Sopko, M. Campbell, A. Diaczek, M.E. Michalon-Mentzer, M.F. Votruba, W. Klempt, Franco Meddi, P. Farthouat, J. Bohm, T. Scognetti, J. Urban, H. Beker, J.B. Kinson, M. Venables, Gunnar Løvhøiden, V. Mack, R. A. Fini, A. Michalon, T. Virgili, W. Beusch, D. Huss, M. Benayoun, G. Rosa, and D. Di Bari
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Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Strange quark ,Proton ,Hadron ,Hyperon ,General Physics and Astronomy - Abstract
Preliminary results from WA97 measurements on Λ, Ξ and Ω production in lead-lead and proton-lead collisions are presented, along with a comparison of WA97 proton-lead data with previous WA85 proton-tungsten results. The ratio Ω/Ξ seems to be enhanced in lead initiated reactions compared to proton initiated reactions.
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- 1996
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29. A comparison of the effect of intramuscular diclofenac, ketorolac or piroxicam on post-operative pain following laparoscopy
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J. J. O'Hanlon, K. R. Milligan, H. Beers, and B. K. D. Huss
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Adult ,Laparoscopic surgery ,medicine.medical_specialty ,Diclofenac ,Time Factors ,medicine.medical_treatment ,Analgesic ,Hemorrhage ,Constriction, Pathologic ,Kidney ,Piroxicam ,Injections, Intramuscular ,medicine ,Humans ,Tolmetin ,Laparoscopy ,Pain Measurement ,Pain, Postoperative ,Chemotherapy ,medicine.diagnostic_test ,business.industry ,Anti-Inflammatory Agents, Non-Steroidal ,Bronchial Diseases ,Analgesics, Non-Narcotic ,Surgery ,Ketorolac ,Anesthesiology and Pain Medicine ,Anesthesia ,Female ,Bronchoconstriction ,Analgesia ,medicine.symptom ,Gastrointestinal Hemorrhage ,business ,medicine.drug - Abstract
Sixty patients presenting for in-patient gynaecological laparoscopic surgery were randomly allocated to receive either diclofenac 75 mg ( n = 20), ketorolac 30 mg ( n = 20) or piroxicam 20 mg ( n = 20) as an intramuscular (i.m.) injection immediately after induction of anaesthesia. Post-operative Visual Analogue Scores at rest, over the first 24 h after surgery, using a 10 cm scale, ranged from 3.2–0.5 in the diclofenac group, 2.7–0.85 in the ketorolac group and 2.8–0.5 in the piroxicam group. The scores did not differ significantly between the three groups ( P > 0.05). Mean time (SD) to first analgesia was 27 (94) min in the piroxicam group, 16 (30) min in the diclofenac group and 62 (120) min in the piroxicam group. Six out of 20 patients in the diclofenac group required further analgesia compared with nine out of 20 in the other two drug groups, this was not significant. There were no reports of increased bleeding, bronchoconstriction, bleeding from the upper gastrointestinal tract, renal impairment or pain from the intramuscular (i.m.) injection site in any of the groups. The administration of a non-steroidal anti-inflammatory drug to patients presenting for laparoscopic surgery reduces post-operative pain and analgesic requirements, and piroxicam 20 mg provides a suitable alternative to 75 mg diclofenac and 20 mg ketorolac.
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- 1996
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30. Design of a High Performances Small Animal PET System With Axial Oriented Crystals and DOI Capability
- Author
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David Brasse, D. Huss, S. Salvador, 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), Département Recherches Subatomiques ( DRS-IPHC ), and 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 )
- Subjects
Nuclear and High Energy Physics ,Photomultiplier ,[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging ,Photodetector ,high throughput ,01 natural sciences ,Lyso ,Detection efficiency ,030218 nuclear medicine & medical imaging ,Crystal ,03 medical and health sciences ,0302 clinical medicine ,Optics ,small animal imaging ,0103 physical sciences ,Figure of merit ,positron emission tomography (PET) ,Electrical and Electronic Engineering ,Image resolution ,spatial resolution ,[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/Imaging ,Physics ,010308 nuclear & particles physics ,business.industry ,Detector ,Solid angle ,Nuclear Energy and Engineering ,business - Abstract
In most Positron Emission Tomography (PET) systems dedicated to small animal imaging, the geometry of the detector module is based on a block structure where the crystal elements are coupled to a reduced number of photomultiplier tubes (PMT). In this configuration, the spatial resolution and the detection efficiency depend on the crystal dimensions and thus there is a correlation between these two figures of merit. In this paper, we present a method already used by Ter-Pogossian in the 1970s allowing the spatial resolution and the detection efficiency to be independent of each other. The crystals are oriented in the axial direction readout on both sides by individual photodetector channels. The spatial resolution in the transverse plane is driven by the crystal section and the spatial resolution in the axial direction is proportional to the contrast of the light collected on both sides of the crystal. The detection efficiency depends on the number of radial crystal layers and the geometry of the system. With the perfect knowledge of the interaction depth, the inner diameter of the PET system can be reduced to a minimum value leading to an increase in detection efficiency. We investigate two particular geometries dedicated to mouse and whole purpose studies and based on the same detection module. Each module consists on a matrix of 32 $,times,$24 LYSO:Ce crystals of 1.5 mm$,times,$1.5 mm$,times,$25 mm each read at both ends by a Photonis Corp multi-channel plate photodetector. The surface treatment is optimized to reach a volumetric spatial resolution of 1 mm$^{3}$. The detection efficiency of each system is evaluated using Monte Carlo simulation. The mouse and whole purpose systems a- - re based on 4 and 6 modules with an inner diameter of 61.2 mm and 103.2 mm where the axial extent is 25 mm leading to a detection efficiency of 18% and 13%, respectively. This geometrical configuration leads to a detection efficiency close to the system solid angle with a volumetric spatial resolution of 1 mm$^{3}$ .
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- 2009
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31. Performances’ evaluation of a pinhole small animal SPECT system
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Ziad El Bitar, Barbara Leh, V Bekaert, D. Huss, and David Brasse
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medicine.diagnostic_test ,business.industry ,Computer science ,Computed tomography ,Collimator ,Iterative reconstruction ,Single-photon emission computed tomography ,law.invention ,law ,Small animal ,medicine ,Pinhole (optics) ,Nuclear medicine ,business ,Image resolution ,Preclinical imaging ,Biomedical engineering - Abstract
During the last decades, small animal imaging has shown an increasing interest in Single Photon Computed Tomography since animal models can mimic human diseases enabling a translation of results and conclusions of research done on animals to humans. SPECT equipped with a pinhole type collimator provides high resolution for in vivo imaging leading to an accurate quantitative measurement especially in small volume of interest.
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- 2008
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32. Optimization of crystal length and coating to improve the Depth Of Interaction spatial resolution in PET imaging
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D. Huss, J. Wurtz, S. Salvador, and David Brasse
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Photomultiplier ,Materials science ,business.industry ,Gamma ray ,Photodetector ,engineering.material ,Avalanche photodiode ,Lyso ,Crystal ,Optics ,Coating ,engineering ,business ,Image resolution - Abstract
Recent researches in PET instrumentation tend to improve the reconstructed spatial resolution using the gamma ray Depth Of Interaction (DOI) information. This method, already introduced by Moses et al., requires reading both ends of a scintillating crystal to be efficient. The recorded charges obtained by the two photodetector such as Photomultiplier Tubes (PMT) or Avalanche PhotoDiodes (APD) are dependent on the depth gamma ray interaction. Braem et al. recently used the contrast calculated as the ratio between the difference of the recorded charges and their sum to improve the DOI spatial resolution. In this work, we investigate the optimization of the crystal length and coating to improve the depth of interaction spatial resolution in PET applications. For a 1.5 × 1.5 mm2 LYSO:Ce crystal section read at both ends by PMT, we find that a length of 25 mm and a coating made with PMMA and 30% of TiO 2 are appropriate to reach a DOI spatial resolution of 1 mm.
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- 2008
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33. 1D gamma counting approach to study radiopharmaceutical kinetics
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Frederic Boisson, V Bekaert, Z. El Bitar, J. Steibel, David Brasse, D. Huss, 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), and Heyd, Yvette
- Subjects
Physics ,Photomultiplier ,Photon ,business.industry ,Monte Carlo method ,Field of view ,Collimated light ,Particle detector ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Optics ,[PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,030220 oncology & carcinogenesis ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,business ,Image resolution ,ComputingMilieux_MISCELLANEOUS ,Gamma counter - Abstract
Some current researches based on small animal model are dedicated to functional cerebral imaging which represents a fundamental tool to understand the mechanisms involved in neurodegenerative diseases. In the radiopharmaceutical development approach, the main challenge is to measure the radioactivity distribution in the brain of a subject with good temporal and spatial resolutions in order to investigate the behaviors of new radiopharmaceuticals inside the injected subject. In the case where the isotope is a single photon emitter, we present a 1 D gamma counter to investigate the possibility to obtain both high detection efficiency and good spatial resolution to access the kinetic of radiopharmaceutical in the brain of a mouse. The system consists in a 64 channels Multi-Anode PhotoMultiplier Tube (H8804, Hamamatsu Corp.) coupled to a highly segmented YAP:Ce crystal consisting of 32 strips of 0.575 × 18.4 × 10 mm3. The collimation is made of 33 tungsten slats of 100 μm thick with a 40 mm height optimized using GEANT4 Monte Carlo simulations. For a field of view of 18.4 × 18.4 mm2, the intrinsic spatial resolution is equal to 575 μm with a total detection efficiency of 0.29% for an extended source. The geometry of this new gamma counter gives one kinetic curve per strip to finally get the radiopharmaceutical kinetic in the whole brain of the mouse. To obtain a 2D projection of the brain radioactivity distribution, a spin rotation procedure can be applied. The gamma counter can also be combined to a microCT system to obtain anatomical information.
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- 2008
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34. Optimization of sentinel lymph node biopsy in breast cancer using an operative gamma camera
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S. Salvador, Carole Mathelin, Norosoa Andriamisandratsoa, Jean-Louis Guyonnet, Sabrina Croce, D. Huss, Service de gynécologie–obstétrique, CHU Strasbourg-Hôpital de Hautepierre [Strasbourg], 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 ), Département Recherches Subatomiques (DRS-IPHC), and 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)
- Subjects
medicine.medical_specialty ,[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging ,Sentinel lymph node ,lcsh:Surgery ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,Case Report ,Tumor Staging ,lcsh:RC254-282 ,030218 nuclear medicine & medical imaging ,law.invention ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Randomized controlled trial ,Surgical oncology ,law ,Biopsy ,medicine ,[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/Imaging ,Gamma camera ,medicine.diagnostic_test ,business.industry ,lcsh:RD1-811 ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,3. Good health ,Surgery ,Oncology ,030220 oncology & carcinogenesis ,Radiology ,business - Abstract
Background Sentinel lymph node (SLN) procedure is now a widely accepted method of LN staging in selected invasive breast cancers (unifocal, size ≤ 2 cm, clinically N0, without previous treatment). Complete axillary clearance is no longer needed if the SLN is negative. However, the oncological safety of this procedure remains to be addressed in randomized clinical trials. One main pitfall is the failure to visualize SLN, resulting in incorrect tumor staging, leading to suboptimal treatment or axillary recurrence. Operative gamma cameras have therefore been developed to optimize the SLN visualization and the quality control of surgery. Case presentation A 44-year-old female patient with a 14-mm infiltrative ductal carcinoma underwent the SLN procedure. An operative gamma camera was used during and after the surgery. The conventional lymphoscintigraphy showed only one SLN, which was also detected by the operative gamma camera, then removed and measured (9.6 kBq). It was analyzed by frozen sections, showing no cancer cells. During this analysis, the exploration of the axillary area with the operative gamma camera enabled the identification of a second SLN with low activity (0.5 kBq) that conventional lymphoscintigraphy, surgical probe and blue staining had failed to visualize. Histological examination revealed a macrometastasis. Axillary clearance was then performed, followed by a postoperative image proving that no SLN remained. Therefore, the use of the operative gamma camera prevented an under-estimation of staging which would have resulted in a suboptimal treatment for this patient. Conclusion This case report illustrates that an efficient operative gamma camera may be able to decrease the risk of false negative rate of the SLN procedure, and could be an additional tool to control the quality of the surgery. Trial Registration ClinicalTrials.gov Identifier: NCT00357487
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- 2007
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35. An operative gamma camera for sentinel lymph node procedure in case of breast cancer
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Carole Mathelin, Jean-Louis Guyonnet, S. Salvador, D. Huss, V Bekaert, 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), Service de gynécologie–obstétrique, CHU Strasbourg-Hôpital de Hautepierre [Strasbourg], Département Recherches Subatomiques ( DRS-IPHC ), and 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 )
- Subjects
Photomultiplier ,medicine.medical_specialty ,[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging ,Sentinel lymph node ,computer-aided so ,Field of view ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,PET PET/CT ,Medical-image reconstruction methods and algorithms ,030218 nuclear medicine & medical imaging ,law.invention ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Optics ,law ,medicine ,Medical physics ,Detectors and Experimental Techniques ,Instrumentation ,Gamma camera ,coronary CT angiography (CTA) ,Mathematical Physics ,[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/Imaging ,Physics ,Large field of view ,business.industry ,Collimator ,medicine.disease ,030220 oncology & carcinogenesis ,SPECT ,business ,Gamma probe - Abstract
Large field of view gamma cameras are widely used to perform lymphoscintigraphy in the sentinel lymph nodes (SLN) procedure in case of breast cancer. However, they are not specified for this application and their sizes do not enable their use in the operative room to control the excision of the all SLN. We present the results obtained with a prototype of a new mini gamma camera developed especially for the operative lymphoscintigraphy of the axillary area in case of breast cancer. This prototype is composed of 10 mm thick parallel lead collimator, a 2 mm thick GSO:Ce inorganic scintillating crystal from Hitachi and a Hamamatsu H8500 flat panel multianode (64 channels) photomultiplier tube (MAPMT) equipped with a dedicated electronics. Its actual field of view is 50 × 50mm2. The gamma interaction position in the GSO scintillating plate is obtained by calculating the center of gravity of the fired MAPMT channels. The measurements performed with this prototype demonstrate the usefulness of this mini gamma camera for the pre, per and post-operative identification of SLN's and how its complementary role with an intraoperative handheld gamma probe enables to improve the efficiency of this practice. A 100 × 100mm2 field of view camera designated to cover the entire axillary area is under investigation.
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- 2007
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36. Precise Localization of Sentinel Lymph Nodes and Estimation of Their Depth Using a Prototype Intraoperative Mini $\gamma$-Camera in Patients with Breast Cancer
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S. Salvador, D. Huss, Jean-Louis Guyonnet, Carole Mathelin, Service de gynécologie–obstétrique, CHU Strasbourg-Hôpital de Hautepierre [Strasbourg], 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), Département Recherches Subatomiques ( DRS-IPHC ), and 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 )
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Adult ,medicine.medical_specialty ,[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging ,Biopsy ,Sentinel lymph node ,Field of view ,Breast Neoplasms ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,030218 nuclear medicine & medical imaging ,law.invention ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,breast cancer ,lymphoscintigraphy ,sentinel lymph node ,law ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,In patient ,Gamma Cameras ,Radionuclide Imaging ,[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/Imaging ,Gamma camera ,Aged ,Neoplasm Staging ,business.industry ,Phantoms, Imaging ,Sentinel Lymph Node Biopsy ,Collimator ,Middle Aged ,medicine.disease ,CarolIReS ,intraoperative gamma-camera ,Surgery ,body regions ,030220 oncology & carcinogenesis ,Female ,Lymph ,Lymph Nodes ,Radiopharmaceuticals ,Nuclear medicine ,business - Abstract
The aim of this study was to evaluate the ability of a prototype intraoperative mini -camera, the CarolIReS, with a 50 x 50 mm field of view, to precisely localize sentinel lymph nodes (SLNs) and to determine their depth in a series of patients with infiltrative breast cancer requiring SLN excision. Methods: With the use of phantoms, the broadness of the signal of an acquired projection was shown to linearly depend on its distance from the collimator. A preclinical ex vivo study of 25 excised SLNs demonstrated that SLN size did not influence depth estimation. The minimum activity threshold for successful use of the proposed method was determined. After a preoperative radioisotope injection and lymphoscintigraphy, the SLN was localized in a series of 11 patients using both the mini -camera and a -probe. During surgery, a ruler was used to measure the depth of all SLNs before their excision. Results: Using the measured linear dependence of image broadness, we found that the expected SLN anatomic depth was compatible with its measured depth during surgery. Conclusion: This study showed that the mini -camera efficiently estimated the location of SLNs in 3 dimensions
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- 2007
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37. The new JCAHO pain assessment standards: implications for the medical director
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J L, Dahl, L, Saeger, W, Stein, and R D, Huss
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- 2003
38. Experimental and simulation study of the behaviour and operation modes of MSGC + GEM detectors
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Olivier Devroede, I. Boulogne, D Huss, E. Daubie, Th. Müller, F. Röderer, W.M. Geist, L. Van Lancker, G. De Lentdecker, J.M Helleboid, Martin Erdmann, Hans-Jürgen Simonis, Christopher Martin, Pascal Vanlaer, Didier Contardo, K. Kärcher, T. Beckers, P. Blüm, T. Barvich, A. Zander, Günter Flügge, J. De Troy, M. Ageron, S. Moreau, K. Bernier, W.H. Thümmel, Stephane Perries, Francesca Iacopi, P. Juillot, T. Weiler, Arnauld Albert, A. Zghiche, D. Macke, Andreas Nowack, J.M. Brom, Laurent Mirabito, C. Maazouzi, U Goerlach, W. Van Doninck, F. Kühn, Jean-Charles Fontaine, M. Fahrer, F. Didierjean, W. Beaumont, Reinhard W. Schulte, C Van Dyck, L. Shekhtman, F. Charles, D. Bouvet, Aysen Tatarinov, W. Struczinski, D. Neuberger, J.-P. Ernenwein, J.P. Coffin, M. Gottschalk, I. Ripp-Baudot, Abdenour Lounis, C. Vander Velde, V. Zhukov, F. Udo, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), CMS, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
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Physics ,Nuclear and High Energy Physics ,010308 nuclear & particles physics ,business.industry ,Physics::Instrumentation and Detectors ,Detector ,Series production ,01 natural sciences ,Signal ,Microstrip ,Nuclear physics ,Chemistry ,Optics ,Amplitude ,0103 physical sciences ,Gas electron multiplier ,High Energy Physics::Experiment ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,010306 general physics ,business ,Instrumentation ,Engineering sciences. Technology ,Beam (structure) ,Voltage - Abstract
A small series production of detector modules made of MicroStrip Gas Counters (MSGC) and a Gas Electron Multiplier (GEM) foil has been exposed to a high-intensity hadron beam, We report about the reproductibility and stability of the detector responses and about the occurrence and consequences of discharges in the detector, The interdependence of the four voltage differences used in the detector has been studied by Simulation and with X-ray measurements. Rate dependence of the signal amplitude is observed. The behaviour of the MSGC + GEM is compared to that of a state-of-the-art MSGC. Influence of various parameters on the detector response is investigated. (C) 2002 Elsevier Science B.V. All rights reserved.
- Published
- 2002
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39. STRANGE BARYON SIGNALS OF A NEW STATE OF MATTER IN LEAD-LEAD COLLISIONS AT THE CERN SPS
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W. Beusch, N. Carrer, M. Morando, D. Huss, V. Lenti, Franco Meddi, Federico Antinori, Marisa Gulino, Gunnar Løvhøiden, Tiziano Virgili, G.F. Segato, D. Di Bari, E. Quercigh, F. Antinori, G. Romano, O. Villalobos Baillie, D. Evans, M.F. Votruba, F. Fayazzadeh, M.E. Michalon-Mentzer, Petr Zavada, R. A. Fini, A. Michalon, I. J. Bloodworth, R. Lietava, A. Jacholkowski, Michael A. Thompson, T. Vik, M. Henriquez, Dieter Røhrich, Vito Manzari, J.B. Kinson, S. Di Liberto, G. Grella, R. A. Loconsole, P.I. Norman, G. T. Jones, A.K. Holme, Ivan Kralik, D. Elia, K. Šafa∙Ík, Pavel Staroba, J. Ftá∙Nik, M. A. Mazzoni, B. Ghidini, J. Urban, L. Sandor, Haavard Helstrup, K. Knudson, Rocco Caliandro, B. Pastir∙Ák, and K. Fanebust
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Physics ,Baryon ,Particle physics ,Lead (geology) ,Large Hadron Collider ,State of matter ,Strangeness production - Published
- 2001
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40. Determination of the event centrality in the WA97 and NA57 experiments
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Giorgio Torrieri, Rocco Caliandro, Roberto Barbera, Jan Pisut, G.S. Pappalardo, L. Sandor, Haavard Helstrup, T.A. Tulina, O. Villalobos Baillie, J. Urban, V. P. Kondratiev, J. Fedorisin, Michael A. Thompson, A. Kolojvari, N. Carrer, Anton Jusko, Ivan Kralik, F. Navach, E. Nappi, P. G. Kuijer, Rosario Turrisi, S. Di Liberto, A. Vascotto, B. Pastirčák, F. Posa, Wisla Carena, J.B. Kinson, V. Lenti, Janka Vrlakova, A. van den Brink, M. Morando, F.F. Valiev, R. A. Fini, B. Ghidini, E. Schillings, K. Fanebust, A. Michalon, D. Muigg, Eugenio Cantatore, Federico Antinori, David H. Evans, M. A. Mazzoni, G. Grella, Francesco Riggi, Pavel Staroba, G. Romano, R. Lietava, Roberto Divia, Domenico Di Bari, R. Sené, A. Palmeri, G Martinská, Davide Elia, T. Vik, W. Beusch, J. Ftacnik, A. Jacholkowski, W. Snoeys, P. Vande Vyvre, Trine Spedstad Tveter, D. Huss, Petr Zavada, K. Knudson, G. A. Feofilov, Gunnar Løvhøiden, M. Luptak, G.F. Segato, P.I. Norman, G. T. Jones, E. Quercigh, A.P. de Haas, A.K. Holme, N. Pišútová, M. Sené, M.E. Michalon-Mentzer, M. Campbell, Franco Meddi, Marisa Gulino, Tiziano Virgili, K. Šafařík, P van de Ven, Giuseppe Bruno, P. Jovanovic, A. Badalà, I. J. Bloodworth, Dieter Røhrich, R. Kamermans, M.F. Votruba, W. Klempt, F. Fayazzadeh, M. Henriquez, L. Vannucci, Vito Manzari, N. van Eijndhoven, I. Vinogradov, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Strange quark ,[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear Theory ,Nuclear Interactions ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear physics ,Quark Gluon Plasma ,Quark–gluon plasma ,Nuclear Experiment ,Nucleon ,Centrality ,Event (particle physics) - Abstract
The procedure employed by the WA97 and NA57 experiments to determine the number of wounded nucleons in different Pb + Pb centrality classes is discussed. We will also compare different centrality scales and their influence on the measurement of the centrality dependence of strange particle yields.
- Published
- 2001
41. Robustness test of a system of MSGC plus GEM detectors at the cyclotron facility of the Paul Scherrer institute
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J.M Helleboid, Jean-Charles Fontaine, P. Blüm, A. Zander, Christopher Martin, Othmane Bouhali, I. Ripp-Baudot, K. Kärcher, M. Ageron, Abdenour Lounis, W. Van Doninck, W. Beaumont, Reinhard W. Schulte, D. Macke, V. Zhukov, W.H. Thümmel, L. Shekhtman, M. Gottschalk, L. Van Lancker, Pascal Vanlaer, J. De Troy, F. Röderer, W. Struczinski, Olivier Devroede, D. Neuberger, Martin Erdmann, E. Daubie, T. Weiler, J.-P. Ernenwein, Didier Contardo, F. Charles, J.P. Coffin, D Huss, C. Vander Velde, K. Bernier, U Goerlach, M. Fahrer, F. Didierjean, Andreas Nowack, Günter Flügge, F. Udo, Hans-Jürgen Simonis, Laurent Mirabito, Francesca Iacopi, P. Juillot, D. Bouvet, C. Maazouzi, F. Kühn, W.M. Geist, S. Moreau, T. Beckers, Aysen Tatarinov, G. De Lentdecker, C Van Dyck, I. Boulogne, Th. Müller, T. Barvich, J.M. Brom, Stephane Perries, A. Zghiche, and Arnauld Albert
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Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Detector ,Cyclotron ,Particle detector ,law.invention ,Nuclear physics ,Chemistry ,Townsend discharge ,law ,Gas electron multiplier ,Measuring instrument ,Physics::Accelerator Physics ,High Energy Physics::Experiment ,Instrumentation ,Engineering sciences. Technology ,Voltage - Abstract
A system of detector modules consisting of a large size Gas Electron Multiplier (GEM), coupled to Micro Strip Gas Counters (MSGC, has been exposed to a pion beam at the Paul Scherrer Institute Cyclotron facility. As part of a CMS tracker milestone, the aim of this test was to investigate the robustness of such detectors when exposed to experimental conditions close to what is expected at the Large Hadron Collider (LHC) of CERN. Eighteen detector modules have been operated at voltage settings corresponding to 98% detection efficiency for Minimum Ionizing Particles during a period of 5 weeks. Sparking rates and strip losses have been monitored throughout the exposure. An operation margin of at least a factor of three with respect to the required gas gain has been demonstrated. (C) 2001 Elsevier Science B.V. All rights reserved.
- Published
- 2001
42. First results of Micromegas detector with fast integrated electronics
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Pascal Vanlaer, Jean-Marie Brom, J.M Helleboid, Jean-Charles Fontaine, F. Drouhin, A. Zghiche, Fabien Jeanneau, A Pallarès, R. Blaes, I. Ripp-Baudot, Y. Benhammou, D. Huss, F. Charles, F Didierjean, Institut de Recherches Subatomiques (IReS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)
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Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Detector ,MicroMegas detector ,Integrated circuit ,Capacitance ,Particle detector ,law.invention ,Nuclear physics ,law ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Physics::Accelerator Physics ,High Energy Physics::Experiment ,Electronics ,Nuclear Experiment ,Instrumentation ,Beam (structure) - Abstract
A wedge-shaped Micromegas detector has been tested with a fast integrated electronics (PREMUX128). Due to the large capacitance of this detector, special care has been taken to protect electronics from possible streamers in the signal collection area; a study of the discharge mechanism is reported here. The signal-to-noise, spatial resolution and efficiency have been evaluated with a 100 GeV/c muons beam at the CERN X5 experimental area. Then the rate capability of this detector has been studied with a high rate 300 MeV /c pions beam at the Paul Scherrer Institute (PSI).
- Published
- 2000
43. Beam test results of a wedge-shaped MSGC+GEM detector at CERN
- Author
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F. Drouhin, B. Schwaller, Fabien Jeanneau, A. Zghiche, V Mack, R. Blaes, Jean-Charles Fontaine, J.M. Brom, I. Ripp-Baudot, Y. Benhammou, D Huss, Institut de Recherches Subatomiques (IReS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Resolution (electron density) ,Detector ,Particle detector ,Nuclear physics ,Measuring instrument ,Gas electron multiplier ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Instrumentation ,Image resolution ,Beam (structure) - Abstract
Test results of Gas Electron Multiplier coupled with a MSGC in October 1997 are described. Several studies have been realized in a beam of Minimum Ionizing Particles (100 GeV/ c muons): signal-to-noise curves for different GEM amplifications and drift fields, spatial resolution, efficiency and cluster size. GEM acts as a simple added element with little disturbance of the system (on the electronics or no degradation of the spatial resolution).
- Published
- 2000
44. Strange and multi-strange baryon production at SPS as a probe of QGP formation
- Author
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Ivan Kralik, N. Carrer, I. J. Bloodworth, L. Sandor, W. Beusch, Haavard Helstrup, Franco Meddi, D. Huss, M. Morando, M. A. Mazzoni, Tiziano Virgili, B. Ghidini, Trine Spedstad Tveter, Federico Antinori, O. Villalobos Baillie, A. Jacholkowski, D. Di Bari, J. Ftacnik, K. Šafařík, G. Lo, D. Elia, P.I. Norman, G. T. Jones, D. Evans, K. Knudson, Pavel Staroba, Vito Manzari, K. Fanebust, vho, M.F. Votruba, Petr Zavada, R. Lietava, Michael A. Thompson, A.K. Holme, iden, J. Urban, Rocco Caliandro, J.B. Kinson, G. Romano, T.F. Thorsteinsen, G. Grella, V. Lenti, H. Bakke, R. A. Fini, A. Michalon, G.F. Segato, E. Quercigh, M.E. Michalon-Mentzer, R. A. Loconsole, S. Di Liberto, B. Pastirčák, and Giorgio Torrieri
- Subjects
Baryon ,Nuclear physics ,Physics ,Strange quark ,Particle physics ,Large Hadron Collider ,Nuclear Theory ,Quark–gluon plasma ,Transverse momentum ,Strangeness production ,Rapidity ,Nuclear Experiment - Abstract
The WA97 experiment studies strangeness production at central rapidity in Pb-Pb, p-Pb and p-Be collisions at CERN SPS. A comprehensive study, including the most recent results on yields and transverse momentum spectra of strange and multi-strange particles, is presented.
- Published
- 2000
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45. Strangeness enhancement at mid-rapidity in Pb–Pb collisions at 158 A GeV/c
- Author
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F. Navach, F. Posa, N. Carrer, R. A. Fini, Giorgio Torrieri, A. Michalon, Franco Meddi, Jozef Urban, S. Szafran, Federico Antinori, G. Tomasicchio, Petr Zavada, Erik H.M. Heijne, Davide Elia, Giovanni Darbo, B.T.H. Knudsen, I. Králik, M. Luptak, G.F. Segato, Michael A. Thompson, B.C. Earl, S. Saladino, Paolo Martinengo, E. Quercigh, Eugenio Cantatore, M.F. Votruba, W. Klempt, G. Rosa, Trine Spedstad Tveter, E. Chesi, Bianca Osculati, A. Kirk, S. Di Liberto, M. A. Mazzoni, G. Romano, Domenico Di Bari, Jean-Charles Fontaine, I. J. Bloodworth, M.E. Michalon-Mentzer, B. Pastirčák, P.I. Norman, G. T. Jones, H. Beker, K. Knudson, W. Beusch, H. Rotscheidt, J. Bohm, M. Dameri, L. Šándor, F. Pellegrini, M. Venables, H. Bakke, Gunnar Løvhøiden, V. Mack, T. Virgili, S. Simone, E. Andersen, D. Huss, Dario Barberis, R.A. Loconsole, E. Nappi, N. Armenise, T.F. Thorsteinsen, T. Kachelhoffer, M.T. Muciaccia, M. Morando, M. Sené, B. Ghidini, A. Jacholkowski, P. Jovanovic, M. Campbell, Haavard Helstrup, W. Snoeys, R. Lietava, David H. Evans, J. Bán, M. G. Catanesi, A.K. Holme, O. Villalobos Baillie, P. Middelkamp, R. A. Ricci, J. Ftáčnik, Pavel Staroba, Rocco Caliandro, Vito Manzari, G. Grella, A. Diaczek, J.B. Kinson, K. Fanebust, A. Volte, R. Sené, K. Piska, Michele Guida, V. Lenti, Leonardo Paolo Rossi, C. Salvo, K. Šafařík, and A. Jusko
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Strangeness ,Lambda baryon ,Omega ,Xi baryon ,Nuclear physics ,Transverse mass ,Rapidity ,Nucleon ,Nuclear Experiment ,Glauber ,Particle Physics - Experiment - Abstract
$K^{0}_{s}$, $\Lambda$, $\Xi$, $\Omega$ and negative particle yields and transverse mass spectra have been measured at central rapidity in Pb-Pb and p-Pb collisions at 158 $A$ GeV/$c$. The yields in Pb-Pb interactions % are presented as a function of the collision centrality and compared with those obtained from p-Pb collisions. Strangeness enhancement in Pb-Pb relative to p-Pb collisions increases with the strangeness content of the particle. Going from p-Pb to Pb-Pb, the strange particle yields increase faster than linearly with the number of participants $N_{part}$ up to $N_{part} \approx 100$, thereafter the increase becomes %linear with $N_{part}$. Yields are studied as a function of the number of nucleons participating in the collision $N_{part}$, which is estimated with the Glauber model. From p-Pb to Pb-Pb collisions the particle yields per participant increase substantially. The enhancement is more pronounced for multistrange particles, and exceeds an order of magnitude for the $\Omega$. For a number of participants, $N_{part}$, greater than $100$, however, all yields per participant appear to be constant.
- Published
- 1999
46. Monitoring of Insecticides resistance against cotton Jassid (Amrasca biguttutla biguttutla) under laboratory conditions
- Author
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Z. Javed, M. S. Asim, A. R. Ishaq, T. Younis, M. Manzoor, D. Hussain, M. Ejaz, U. Saleem, and M. Asrar
- Subjects
Amrasca biguttutla biguttutla ,confidor ,insecticide’s resistances ,pyriproxyfen ,IPM ,Science ,Biology (General) ,QH301-705.5 ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
Abstract Development of insecticides resistance mainly hinge with managements techniques for the control of Jassid, Amrasca biguttutla biguttutla. Five insecticides were applied against field collected and laboratory rared jassid populations during the years of 2017 to 2019 to profile their resistance level against field population of jassid through leaf dip method. Very low resistance level was found in jassid against confidor whereas high level of resistance was observed by pyriproxyfen against other test insecticides. Gradual resistance was observed against diafenthiuron. It is concluded that for the management of Jassid repetition of same insecticide should be avoided. The use of confidor may be reduced to overcome resistance against Jassid.
- Published
- 2021
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47. Strange and multistrange baryon production in Pb-Pb collisions at 158 A GeV/c
- Author
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Leonardo Paolo Rossi, W. Beusch, K.L. Norman, Håvard Helstrup, S. Szafran, D. Huss, G. Vassiliadis, D. Di Bari, Pavel Staroba, P. Jovanovic, M. T. Muciaccia, F. Posa, J.B. Kinson, G. Tomasicchio, Federico Antinori, V.A. Kachanov, W. Geist, N. Armenise, G. Romano, S. Saladino, A.K. Holme, V. Lenti, J. C. Lassalle, E. Andersen, Alberto Andrighetto, N. Carrer, T.F. Thorsteinsen, G. Rosa, A. Kirk, Erik H.M. Heijne, M.F. Votruba, A. Jacholkowski, W. Klempt, Eugenio Nappi, C. Salvo, Gunnar Løvhøiden, G. Grella, P. Middelkamp, J. Bán, M. Sené, M. Campbell, S. Di Liberto, H. Beker, Eugenio Cantatore, Anton Jusko, B. Sopko, H. Rotscheidt, M. A. Mazzoni, B. Ghidini, J. P. Davies, R. A. Fini, A. Singovski, J. Urban, A. Michalon, B. Pastirčák, David H. Evans, V. Mack, Vito Manzari, J. Šťastný, A. Volte, J.A. Lien, Franco Meddi, K. Šafařík, Petr Zavada, F. Navach, T. Kachelhoffer, Michele Guida, R. Lietava, I. Králik, M. Luptak, G.F. Segato, M. G. Catanesi, Giovanni Darbo, L. Šándor, F. Pellegrini, R. Sené, M. Vaníčková, M. Morando, Paolo Martinengo, T. Scognetti, E. Quercigh, Jean-Charles Fontaine, E. Chesi, Bianca Osculati, T. Storås, Tiziano Virgili, M. Dameri, M.E. Michalon-Mentzer, K. Knudson, I. Mácha, Dario Barberis, P. Sennels, J. Bohm, S. Simone, A. Di Mauro, M. Venables, R. A. Loconsole, J. Ftacnik, Rocco Caliandro, A. Diaczek, K. Fanebust, K. Piska, D. Elia, C. Voltolini, O. Villalobos Baillie, R. A. Ricci, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Spectrometer ,Quark-gluon plasma ,nucleon ,WA97 ,[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex] ,Detector ,Strangeness ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Tracking (particle physics) ,Omega ,Baryon ,Nuclear physics ,Particle - Abstract
The series of experiments (WA85, WA94 and WA97) at the Omega spectrometer at CERN SPS have systematically studied the production of different strange particles. Strangeness enhancements at central rapidities have been reported by WA85 and WA94 in S-W and SS with respect to p-A collisions. For the investigation of PbPb interactions in the WA97 experiment a new detector suitable for high particle densities, the Pixel Tracking Chamber, has been developed based on silicon pixel detectors. The results on production ratios and cross sections of Λ, Λ , Ξ − , Ξ + , Ω − and Ω + detected by this experiment are presented. A significant enhancement of the Ω over Ξ ratio is observed when comparing p-Pb to PbPb data (a factor of about 3).
- Published
- 1998
48. The trigger system of the first CMS tracker beam tests
- Author
-
F. Drouhin, Y. Benhammou, D. Huss, Jean-Charles Fontaine, B. Schwaller, F. Charles, A. Pallares, C. Hoffmann, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette
- Subjects
Physics ,Nuclear and High Energy Physics ,Physics::Instrumentation and Detectors ,business.industry ,Electrical engineering ,law.invention ,Software ,Data acquisition ,Nuclear Energy and Engineering ,[PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Robustness (computer science) ,law ,Nuclear electronics ,Scalability ,Physics::Accelerator Physics ,Electronics ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Electrical and Electronic Engineering ,business ,Compact Muon Solenoid ,Remote control ,Computer hardware - Abstract
The trigger for the first compact muon solenoid (CMS) tracking beam tests is a dedicated system for analog multiplexed front-end electronics. With this first generation of electronics dedicated to CMS tracker detectors, some new specific development was necessary to read it with a multicrate distributed data acquisition (DAQ) system. The goal of this development was to reach a high scalability of experiment subsystems and a good robustness for test beams. Each subsystem had to be independent from the others, both from the hardware and software point of view. Remote control software for this system as well as further monitoring facilities were the required functions of the trigger system.
- Published
- 1998
49. Enhancement of central Λ, Ξ and yields in Pb-Pb collisions at 158 A GeV/c
- Author
-
A. Kirk, M.T. Muciaccia, Giorgio Torrieri, A. Singovski, G. Grella, F. Navach, J.B. Kinson, F. Posa, Jean-Charles Fontaine, David H. Evans, S. Szafran, B.T.H. Knudsen, Michele Guida, S. Simone, E. Andersen, Eugenio Cantatore, Federico Antinori, Trine Spedstad Tveter, R.A. Loconsole, M. G. Catanesi, M. Morando, Petr Zavada, B. Ghidini, M. Dameri, Rocco Caliandro, P.I. Norman, Michael A. Thompson, Erik H.M. Heijne, S. Saladino, N. Carrer, G. T. Jones, H. Bakke, W. Beusch, H. Rotscheidt, K. Piska, Gunnar Løvhøiden, A.K. Holme, Anton Jusko, M. Sené, M. Campbell, A. Diaczek, M.E. Michalon-Mentzer, I. J. Bloodworth, V. Lenti, D. Huss, P. Jovanovic, R. A. Fini, Dario Barberis, T. Virgili, H. Beker, P. Middelkamp, O. Villalobos Baillie, R. A. Ricci, K. Fanebust, E. Nappi, J. Urban, A. Michalon, T. Kachelhoffer, J. Bohm, A. Volte, B.C. Earl, I. Králik, N. Armenise, M.A. Mazzoni, Walter Snoeys, Davide Elia, M. Venables, V. Mack, Vito Manzari, R. Lietava, R. Sené, M. Luptak, G.F. Segato, Domenico Di Bari, Paolo Martinengo, K. Knudson, G. Tomasicchio, L. Šándor, A. Jacholkowski, F. Pellegrini, E. Quercigh, Franco Meddi, V.A. Kachanov, G. Romano, M.F. Votruba, T. Scognetti, W. Klempt, G. Rosa, Pavel Staroba, T.F. Thorsteinsen, Haavard Helstrup, J. Bán, Giovanni Darbo, E. Chesi, Bianca Osculati, K. Šafařík, Leonardo Paolo Rossi, G. Vassiliadis, C. Salvo, J. C. Lassalle, S. Di Liberto, B. Pastirčák, and J. Ftacnik
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,010308 nuclear & particles physics ,Nuclear Theory ,Hyperon ,Hyperons ,Strangeness ,01 natural sciences ,Spectral line ,Nuclear physics ,0103 physical sciences ,Quark–gluon plasma ,Transverse mass ,Quark Gluon Plasma ,Nuclear Experiment ,010306 general physics - Abstract
Λ, Ξ and Ω yields and transverse mass spectra have been measured in Pb-Pb and p-Pb collisions at 158 A GeV/c. The yields in Pb-Pb interactions are presented as a function of the collision centrality and compared with those obtained from p-Pb collisions. Strangeness enhancement is observed which increases with centrality and with the strangeness content of the hyperon.
- Published
- 1998
50. WA97 results on strangeness production in lead-lead collisions at 158 A GeV/c
- Author
-
S. Simone, V. Lenti, G. Tomasicchio, J. Urban, A. Di Mauro, R. A. Loconsole, L. Šándor, F. Pellegrini, J.A. Lien, M. T. Muciaccia, Ph. Leruste, N. Carrer, J. Ftacnik, N. Armenise, M. Morando, A. Diaczek, M.F. Votruba, W. Klempt, Eugenio Nappi, Leonardo Paolo Rossi, M.E. Michalon-Mentzer, C. Salvo, J. Bán, Pavel Staroba, J. C. Lassalle, H. Rotscheidt, P. Middelkamp, Giovanni Darbo, J. L. Narjoux, K. Knudson, J. P. Davies, H. Beker, E. Chesi, B. R. French, Franco Meddi, Håvard Helstrup, E. Andersen, J. Bohm, Michele Guida, K. Piska, G. Vassiliadis, A. Kirk, P. Farthouat, P. Jovanovic, A. Volte, T. Scognetti, M. Luptak, D. Elia, G.F. Segato, Vito Manzari, M. Sené, V. Mack, R. Lietava, R. Sené, Anton Jusko, I. Mácha, T. Storås, M. Vaníčková, A. Jacholkowski, K. Fanebust, W. Geist, F. Posa, T. Kachelhoffer, C. Voltolini, K. Šafařík, M.A. Mazzoni, B. Osculati, E. Quercigh, Federico Antinori, M. Venables, V.A. Kachanov, Erik H.M. Heijne, T.F. Thorsteinsen, T. Virgili, I. Králik, K.L. Norman, Petr Zavada, Paolo Martinengo, J.B. Kinson, G. Grella, S. Szafran, P. Sennels, A. Singovski, J.C. Fontaine, G. Romano, Michael Campbell, R. A. Fini, M. Dameri, A. Michalon, G. Rosa, Gunnar Løvhøiden, Dario Barberis, D. Di Bari, Eugenio Cantatore, B. Ghidini, F. Navach, W. Beusch, D. Huss, M. Benayoun, B. Sopko, David H. Evans, J. Šťastný, M. G. Catanesi, L. Lopez, S. Saladino, A.K. Holme, Alberto Andrighetto, S. Di Liberto, B. Pastirčák, O. Villalobos Baillie, and R. A. Ricci
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Proton ,Heavy Ion Collisions ,Strangeness production ,Strangeness ,Nuclear physics ,Lead (geology) ,Quark Gluon Plasma ,Quark–gluon plasma ,Mass spectrum - Abstract
Preliminary results from WA97 measurements on Λ, Ξ and Ω production in lead-lead and proton-lead collisions are presented, along with a comparison of WA97 proton-lead data with previous WA85 proton-tungsten results. The ratio Ω gX seems to be enhanced in lead initiated reactions compared to proton initiated reactions.
- Published
- 1996
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