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Calculation and Analysis of Double-Differential Cross Sections for n + 209Bi Reaction

Yinlu Han, Zhengjun Zhang

Nuclear Science and Engineering / Volume 141 / Number 2 / June 2002 / Pages 154-164

Technical Paper

Based on the experimental data of the total, nonelastic-scattering, and elastic-scattering cross sections and the elastic-scattering angular distribution of 209Bi, a set of optimal neutron optical potential parameters is obtained, and all cross sections of the neutron-induced reaction, angular distribution, energy spectra, gamma-ray production cross sections, and gamma-ray production energy spectra, especially the double-differential cross section for neutron, proton, deuteron, triton, and alpha-particle emission, are calculated and analyzed for n + 209Bi at incident neutron energies <20 MeV. Theoretical calculated data are compared with existing experimental data and other evaluated data from ENDF/B6 and JENDL-3.

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