Nuclide cross-sections of fission fragments in the reaction 208Pb + p at 500 A MeV
| Autor: | C. Volant, K.-H. Schmidt, F. Rejmund, B. Fernández-Domínguez, R. Legrain, M. Bernas, A. Boudard, C. Stephan, T. Enqvist, M. V. Ricciardi, M.S. Pravikoff, S. Czajkowski, L. Tassan-Got, B. Jurado, W. Wlazlo, J. Benlliure, J.-E. Ducret, J. Taieb, J. Pereira, P. Armbruster, Enrique Casarejos, S. Leray, B. Mustapha, L. Audouin |
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| Přispěvatelé: | Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Helmholtz zentrum für Schwerionenforschung GmbH (GSI), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H. Goutte, H. Faust, G. Fioni, D. Goutte, Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2005 |
| Předmět: |
Spallation sources
Accelerator-driven systems Nuclear and High Energy Physics Fission 24.75.+i 25.85.Ge 25.40.Sc Nuclear Theory 02 engineering and technology [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] 01 natural sciences 7. Clean energy Nuclear physics Recoil 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Nuclei identification Recoil velocities Spallation Neutron Nuclide Nuclear Experiment 010306 general physics Physics Fission products 010308 nuclear & particles physics 020206 networking & telecommunications Spallation reaction Physics::Accelerator Physics 020201 artificial intelligence & image processing Production of fission fragments Excitation |
| Zdroj: | Nuclear Physics A Nuclear Physics A, Elsevier, 2005, 747, pp.227-267. ⟨10.1016/j.nuclphysa.2004.10.013⟩ Nuclear fission and fission-product spectroscopy 3rd International Workshop on Nuclear Fission and Fission-Product Spectroscopy 3rd International Workshop on Nuclear Fission and Fission-Product Spectroscopy, May 2005, Cadarache, France. pp.45-48, ⟨10.1063/1.2137226⟩ Nuclear Physics A, 2005, 747, pp.227-267. ⟨10.1016/j.nuclphysa.2004.10.013⟩ |
| ISSN: | 0375-9474 |
| DOI: | 10.1016/j.nuclphysa.2004.10.013 |
| Popis: | PACS conv.GSI; The isotopic distributions and recoil velocities of the fission fragments produced in the spallation reaction 208Pb + p at 500 A MeV have been measured using the inverse-kinematics technique, a lead beam onto a liquid-hydrogen target, and the high-resolution spectrometer FRS at GSI. The shapes of the different distributions are found in good agreement with previously published data while the deduced total fission cross-section is higher than expected from existing systematics and some previous measurements. From the experimental data, the characteristics of the average fissioning system can be reconstructed in charge, mass and excitation energy, and the average number of post-fission neutrons can be inferred. The results are also compared to different models describing the spallation reaction. The intranuclear cascade code INCL4 followed by the de-excitation code ABLA is shown to describe reasonably well the evolution of the isotopic distribution shapes between 500 and 1000 A MeV. |
| Databáze: | OpenAIRE |
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