Calculation and evaluation of neutron-induced reactions on 60Ni below 150Â MeV

Based on the experimental data of total, nonelastic, elastic cross section and elastic-scattering angular distributions for n+60Ni reactions, a set of neutron optical model potential parameters is obtained in the region of incident neutron energy from 0.456 MeV to 150 MeV. The reaction cross sections, angular distributions, energy spectra, gamma-ray production cross sections, gamma-ray production energy spectra, are calculated and evaluated by optical model, distorted wave Born approximation theory, Hauser-Feshbach theory, exciton model and cascade mechanism inside nucleus. The theoretical model code UNF and MEND are used in the neutron incident energies below 20 MeV and 20 < En ⩽ 150 MeV, respectively. The results are compared with existing experimental data and other evaluated data from ENBF/B-6 and JENDL-3 and in agreement with each other within the uncertainties of these evaluation and measurements. Finally the covariances for the important neutron cross sections are estimated using SPC code based on the available experimental data.