Cascade-Exciton Model Analysis of Nucleon-Induced Fission Cross Sections of Lead and Bismuth at 45- to 500-MeV Energies

An extended version of the cascade-exciton model (CEM) of nuclear reactions is applied to analyze nucleon-induced fission cross sections for 209 Bi and 208 Pb nuclei in the 45- to 500-MeV energy range. The available data on linear momentum transfer are analyzed as well. The results are compared with...

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Bibliographic Details
Published in:Nuclear science and engineering 1999-01, Vol.131 (1), p.78-95
Main Authors: Prokofiev, A. V., Mashnik, S. G., Sierk, A. J.
Format: Article
Language:English
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Summary:An extended version of the cascade-exciton model (CEM) of nuclear reactions is applied to analyze nucleon-induced fission cross sections for 209 Bi and 208 Pb nuclei in the 45- to 500-MeV energy range. The available data on linear momentum transfer are analyzed as well. The results are compared with analytical approximations resulting from a comparative critical analysis of all available experimental data. Systematic discrepancies between calculations and experimental data are revealed. A modification of the CEM is proposed, which significantly improves the model predictions for projectile energies above 100 MeV.
ISSN:0029-5639
1943-748X
DOI:10.13182/NSE99-A2019