Effects of fissioning nuclei distributions on fragment mass distributions for high energy fission
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2012
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INTERNATIONAL WORKSHOP ON COMPOUND NUCLEAR REACTIONS AND RELATED TOPICS, 3rd
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We study the effects of fissioning nuclei mass- and energy-distributions on
the formation of fragments for fission induced by high energy probes. A Monte Carlo
code called CRISP was used for obtaining mass distributions and spectra of the fissioning
nuclei for reactions induced by 660 MeV protons on 241Am and on 239Np, by 500 MeV
protons on 208Pb, and by Bremsstrahlung photons with end-point energies at 50 MeV and
3500 MeV on 238U. The results show that even at high excitation energies, asymmetric
fission may still contribute significantly to the fission cross section of actinide nuclei,
while it is the dominante mode in the case of lead. However, more precise data for high
energy fission on actinide are necessary in order to allow definite conclusions.
Como referenciar
ANDRADE-II, E.; MENEZES, J.C.M.; DUARTE, S.B.; GARCIA, F.; ROSSI, P.C.R.; TAVARES, O.A.P.; DEPPMAN, A. Effects of fissioning nuclei distributions on fragment mass distributions for high energy fission. In: INTERNATIONAL WORKSHOP ON COMPOUND NUCLEAR REACTIONS AND RELATED TOPICS, 3rd, September 19-23, 2011, Prague, Czech Republic. Proceedings... Les Ulis, France: EDP Sciences, 2012. p. 1-9. (EPJ Web of Conferences, 21, 10001). DOI: 10.1051/epjconf/20122110001. Disponível em: http://repositorio.ipen.br/handle/123456789/27623. Acesso em: 08 May 2024.
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