5 results on '"T. Gorbinet"'
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2. SOFIA: An innovative setup to measure complete isotopic yield of fission fragments
- Author
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Andreas Martin Heinz, S. Pietri, M. Caamaño, D. M. Rossi, J. L. Rodriguez-Sanchez, Bernd Voss, Beatriz Jurado, Helmut Weick, C. Nociforo, J. S. Winfield, B. Fernández-Domínguez, C. Paradela, L. Audouin, J. F. Martin, L. Tassan-Got, B. Laurent, Enrique Casarejos, J. Taieb, Yassid Ayyad, A. Prochazka, T. Gorbinet, K.-H. Schmidt, A. Chatillon, H. Alvarez-Pol, N. Kurz, G. Boutoux, E. Pellereau, Herbert A. Simon, A. Ebran, G. Belier, J. Benlliure, A. Kelic-Heil, J. Vargas, and D. Cortina-Gil
- Subjects
Physics ,Nuclear physics ,Range (particle radiation) ,Inverse kinematics ,Fission ,Yield (chemistry) ,QC1-999 ,Heavy ion ,Coulomb excitation ,Nuclear Experiment ,Measure (mathematics) ,Spectral line - Abstract
We performed an experiment dedicated to the accurate isotopic yield measurement of fission fragments over the whole range. SOFIA exploits the inverse kinematics technique: using heavy ion beams at relativistic energies, fission is induced by Coulomb excitation in a high-Z target. The fragments are emitted forward and both of them are identified in charge and mass. The setup will be presented, as well as preliminary spectra. © Owned by the authors, published by EDP Sciences, 2013.
- Published
- 2013
3. The elusiveness of multifragmentation footprints in 1-GeV proton-nucleus reations
- Author
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Alain Boudard, Sylvie Leray, Davide Mancusi, Jean-Christophe David, T. Gorbinet, and Joseph Cugnon
- Subjects
Physics ,Nuclear physics ,medicine.anatomical_structure ,Proton ,QC1-999 ,medicine ,Binary number ,Incident energy ,Observable ,Nucleus - Abstract
We use the tools of hybrid intranuclear-cascade/nuclear-de-excitation models to evaluate the sensitivity of several physical observables to the inclusion of a multifragmentation stage in the deexcitation chain and assess the need for a multifragmentation model in the quantitative description of p + 56 Fe and p + 136 Xe reactions at 1-GeV incident energy. We seek clear signatures of multifragmentation by comparing different state-of-the-art de-excitation models coupled with intranuclear-cascade models and by focusing on discriminating observables such as correlations and fragment longitudinal-velocity distributions. None of the considered observables can be unambiguously interpreted as a multifragmentation footprint. The experimental data are best described as originating from sequential binary decays. However, no de-excitation model can reproduce the experimental longitudinal-volocity distributions from 1-GeV p + 136 Xe.
- Published
- 2012
4. Dissipative effects in fission investigated with proton-on-lead reactions
- Author
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Andreas Martin Heinz, Enrique Casarejos, J. L. Rodriguez-Sanchez, Herbert A. Simon, J. F. Martin, Yassid Ayyad, D. Ramos, A. Kelic-Heil, H. Alvarez-Pol, C. Paradela, J. Benlliure, L. Audouin, D. M. Rossi, E. Pellereau, J. Taieb, C. Rodriguez-Tajes, Bernd Voss, B. Pietras, T. Gorbinet, G. Belier, J. Vargas, D. Cortina-Gil, B. Laurent, A. Chatillon, G. Boutoux, DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), V. Greco, M. La Cognata, S. Pirrone, F. Rizzo, C. Spitaleri, 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 ,Angular momentum ,Proton ,Mass distribution ,VIII. Fusion and Fission ,010308 nuclear & particles physics ,Fission ,QC1-999 ,Nuclear Theory ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,Nuclear physics ,0103 physical sciences ,Dissipative system ,Neutron ,Spallation ,Atomic number ,Atomic physics ,Nuclear Experiment ,010306 general physics - Abstract
The complete kinematic measurement of the two fission fragments permitted us to investigate dissipative effects at large deformations, between the saddle-point and the corresponding scission configurations. Up to now, this kind of study has only been performed with fusionfission reactions using a limited number of observables, such as the mass distribution of the fission fragments or the neutron multiplicities. However, the large angular momenta gained by the compound nucleus could affect the conclusions drawn from such experiments. In this work, the use of spallation reactions, where the fissioning systems are produced with low angular momentum, small deformations and high excitation energies, favors the study of dissipation, and allowed us to define new observables, such as postscission neutron multiplicities and the neutron excess of the final fission fragments as a function of the atomic number of the fissioning system. These new observables are used to investigate the dissipation at large deformations.
- Published
- 2016
- Full Text
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5. Fission of highly excited nuclei investigated in complete kinematic measurements
- Author
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J. Vargas, H. Alvarez-Pol, J. Benlliure, A. Prochazka, A. Kelic-Heil, C. Paradela, L. Audouin, B. Laurent, T. Gorbinet, N. Kurz, J. F. Martin, D. M. Rossi, J. L. Rodriguez-Sanchez, L. Tassan-Got, D. Cortina-Gil, Herbert A. Simon, Andreas Martin Heinz, C. Rodriguez-Tajes, Bernd Voss, B. Pietras, D. Ramos, G. Belier, J. Taieb, E. Pellereau, Yassid Ayyad, A. Chatillon, G. Boutoux, Enrique Casarejos, DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), F. Farget, A. Chatillon, H. Faust, G. Fioni, D. Goutte, H. Goutte, 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
Physics ,010308 nuclear & particles physics ,Fission ,QC1-999 ,Nuclear Theory ,Observable ,Kinematics ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,Coincidence ,Nuclear physics ,Excited state ,0103 physical sciences ,Quasiparticle ,Dissipative system ,Neutron ,Atomic physics ,Nuclear Experiment ,010306 general physics - Abstract
International audience; Fission is an extremely complex mechanism that requires a dynamical approach to describe the evolution of the process in terms of intrinsic and collective excitations of the nuclear constituents. In order to determine these effects a complex experimental setup was mounted at GSI, which allowed us for the first time the full identification in charge and mass of all fission fragments thanks to a magnetic separation and the use of the inverse kinematic technique. Moreover, we also measured the neutron multiplicities and the light-charged particles emitted in coincidence with fission. These complete kinematic measurements will be used to define sensitive observables to dissipative and transient effects in fission. In this manuscript we present the first results for the total fission cross sections.
- Published
- 2013
- Full Text
- View/download PDF
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