Analysis for fragment products proton-induced reactions on Pb with energy up to GeV

The mass and distribution of residual products produced in the spallation reaction needs to be studied because it can provide useful information for the disposal of nuclear waste and the radiation damage in the spallation target. We studied the mass and charge distribution of the spallation products by using quantum molecular dynamic (QMD) models. The simulation results are good agreement with the experimental data of the spallation fragment and empirical formula. However, QMD model is not including the fission process, calculations can not reproduce the fission fragment. The fission model is introduced into QMD model to investigate the fragment products proton-induced reactions on Pb, the results are in good agreement with the experimental data. (author)