Measurement of Leakage Gamma Spectra in Boron-containing-PE Spheres by D-T Neutron

The leakage gamma spectra from PE spheres with different percentage of B_4C and different thickness irradiated by D-T neutron were measured. The leakage gamma spectra were calculated using MCNP/4A code with ENDF/B-Ⅴ database. Comparing with the experiment, they have good consistency within the error range.