Cascade-Exciton Model Analysis of Nucleon-Induced Fission Cross Sections   of Lead and Bismuth at Energies from 45 to 500 MeV
  An extended version of the Cascade-Exciton Model (CEM) of nuclear reactions is applied to analyze nucleon-induced fission cross sections for Bi-209 and Pb-208 nuclei in the 45-500 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. 
A. V. Prokofiev (1), S. G. Mashnik (2), A. J. Sierk (2) ((1) V. G.   Khlopin Radium Institute, St. Petersburg, Russia, (2) L...