Design and evaluation of neutron howitzer design for the research and education using MCNP5 program

Abstract

In this paper, the design evaluation of a neutron howitzer using for research and education purposes in Training Center at Dalat Nuclear Research Institute is presented. A mixture of paraffin and boron is used as both moderator and absorber in order to shield neutron from the 252Cf source. The howitzer cover which is made from steel shields the gamma-rays caused by the neutron capture reaction of boron. The simulation has been done using the MCNP5 program. The result shows that the design met requirements of usage and radiation safety rules in Vietnam.