Theoretical analysis and evaluation for neutron-induced reaction on 239Pu

Abstract

The nuclear data of n+239Pu reaction for the incident energy up to 200MeV are currently required for the study of new-generation nuclear systems. To meet this requirement, all cross sections, angular distributions, energy spectra, double differential cross sections of neutron, proton, deuteron, triton, helium-3 and alpha emissions and the number of neutron per fission for n+239Pu reaction are consistently calculated and analyzed by theoretical nuclear models in the energy range of En⩽200MeV. The theoretical models include the optical model, the distorted wave Born approximation theory, the Hauser-Feshbach theory, the fission model, the evaporation model, the exciton model and the intranuclear cascade model. The calculated results are compared with recent experimental data and the evaluated data from ENDF/B-VII and JENDL-4.