[1N04-07] Radiation Shielding

[1N04] Study on shielding performance for an accelerator-driven transportable neutron source

*Masato Tachibana¹, Tomohiro Kobayashi², Yujiro Ikeda², Yoshie Otake², Jun Kawarabayashi¹, Naoto Hagura¹ (1. Tokyo City University, 2. Institute of Physical and Chemical Research)

Keywords:transportable accelerator, neutron source, Monte Carlo particle transport calculation code, radiation shielding

The purpose of this study is to optimize shielding structure for a transportable neutron source by calculations with the PHITS code under development of RANS-II. It is shown that 5 % borated polyethylene and lead are suitable materials, and two layers for each materials, with 10cm and 5cm thicknesses, respectively, give an optimized performance.