Neutron and light-charged-particle productions in proton-induced reactions on 208Pb at 62.9 MeV |
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Authors: | A. Guertin N. Marie S. Auduc V. Blideanu Th. Delbar P. Eudes Y. Foucher F. Haddad T. Kirchner Ch. Le Brun C. Lebrun F. R. Lecolley J. F. Lecolley X. Ledoux F. Lefèbvres T. Lefort M. Louvel A. Ninane Y. Patin Ph. Pras G. Rivière C. Varignon |
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Affiliation: | (1) Laboratoire Subatech, F-44307 Nantes cedex 03, France;(2) Laboratoire de Physique Corpusculaire, F-14050 Caen cedex, France;(3) Département de Physique Théorique et Appliquée, Service de Physique Nucléaire, B.P. 12, F-91680 Bruyères-le-Châtel, France;(4) Institut de Physique Nucléaire, B-1348 Louvain-la-Neuve, Belgium |
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Abstract: | Neutrons and light charged particles produced in 62.9MeV proton-induced reactions on 208Pb were measured during a single experiment performed at the CYCLONE facility in Louvain-la-Neuve (Belgium). Two independent experimental set-ups were used to extract double differential cross-sections for neutrons, protons, deuterons, tritons, 3He and alpha-particles. Charged particles were detected using a set of Si- Si- CsI telescopes from 25° to 155°, by step of 10 degrees. Neutrons were measured using shielded DeMoN counters, liquid NE213 scintillators, at 24°, 35°, 55°, 80° and 120°. These data allowed the determination of angle differential, energy differential and total production cross-sections. A comparison with theoretical calculations (MCNPX, FLUKA and TALYS) has been performed. It shows that the neutron and proton production rates are well predicted by MCNPX, using the INCL4 option. All the other codes underestimate the neutron production whereas they overestimate the proton one. For composite particles, which represent 17% of the charged particle total reaction cross-section, neither the shape nor the amplitude of the cross-sections are correctly predicted by the models. |
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Keywords: | 27.80.+w 190 /content/htprfn0mttyybwpm/xxlarge10877.gif" alt=" les" align=" MIDDLE" BORDER=" 0" > A /content/htprfn0mttyybwpm/xxlarge10877.gif" alt=" les" align=" MIDDLE" BORDER=" 0" > 219 25.40.-h Nucleon-induced reactions 25.40.Sc Spallation reactions |
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