Simulation and Analysis of Experimental Plutonium Production Rates in Depleted Uranium Sphere Bombarded by 14 MeV Neutron

According to the measurement of plutonium production rates resulting from 14 MeV neutrons in depleted uranium sphere,the experimental results and influencing factors were simulated and analyzed with MCNP5 code.It shows that simulant plutonium production rates from uresa and endf66c agree very well with experimental results,simulant effects on plutonium production rates by cavity,construction materials and water lays and background neutrons etc.,are slight.