Proton- and Neutron-Induced Fission Cross Sections and Fission Probability in the Intermediate Energy Region

New results are presented of the intermediate energy neutron- and proton-induced fission cross sections of nuclei in the lead region. These results, together with earlier ones, are used for comparison of the fission probability of nuclei induced by protons and neutrons. Possible physical reasons of observed differences in proton- and neutron-induced fission cross sections are discussed.