Light charged particle production in the interaction of fast neutrons (25-65 MeV) with uranium nuclei

Energy spectra (double-differential cross sections) for proton, deuteron, triton, and alpha-particle production in fast neutron induced reactions on uranium are reported for several incident neutron energies between 25 and 65 MeV. The spectra were obtained at nine laboratory angles between 20degrees and 160degrees and extrapolated and interpolated to other ten angles suitably covering the laboratory angular domain of 0degrees to 180degrees. The experimental setup and procedures for data reduction including corrections and normalization are presented and discussed. Based on the obtained double-differential cross sections, energy-differential and total cross sections are deduced as well. Theoretical calculations are based on GNASH and TALYS nuclear reaction codes which integrate the optical model, direct, preequilibrium, fission, and statistical nuclear reaction models in one calculation scheme