M-C simulation on n-γ field for D-T intense neutron generator

A D-T neutron source model was constructed. The n-γ field distribution of the intense neutron generator with 260 keV deuteron beam at Lanzhou University was simulated using MCNP code. The interactions between neutron and the materials of neutron generator and the shielding walls were included in this study. The neutron energy spectrum, the angular distribution of neutron and γ-ray, and the n-γ ratio were presented. The M-C simulation results were compared to the experimental data to verify the reliability of the D-T neutron source model.