Nuclear data evaluations on zirconium, niobium and tungsten for neutron and proton incidence up to 200 MeV

Nuclear data were evaluated on ^9091929496Zr, ⁹³Nb and ^182183184186W for neutron and proton incidence up to 200 MeV. Optical model potential parameters were searched to give good agreements with experimental values of elastic-scattering, total, and total-reaction cross sections. The GNASH pre-equilibrium/statistical model code was used for evaluations of particle-production cross sections. Since the direct inelastic-scatterings induced by the excitations of giant resonances are not negligible for these nuclei, the calculation was performed to take them into consideration. For composite-particle emission cross sections from pre-equilibrium states, semi-empirical methods were utilized to give good agreements with experimental results. We also calculated isotope-production cross sections. Evaluated cross sections were compared with values by measurements and the LA150 evaluations.