[1H01-08] PHITS Code, Shielding Calculation, Standardization of Shielding Material

[1H06] 2017 Activity report on simple calculation code review WG for radiation shielding(2)

Survey of thin layer in existing build-up factor data and transport analysis

*Fumiyoshi Nobuhara¹, Shohei Iwai¹, Yusuke Matsui², Yukio Sakamoto³ (1. Tokyo Nuclear Services Co., LTD., 2. TEPCO SYSTEMS CORPORATION, 3. ATOX CO., LTD.)

Keywords:QAD, simple calculation code for radiation shielding, build up factor, a thin layer condition, BF value behaviors near the radiation source point.

We are continueing a investion in a thin layer shielding as an activity in simple shielding code review WG in 2017. In this presentation, through investigation of existing buildup factor data(BF value) and calculation survey of various analysis codes to understanding of BF value behaviors near the radiation source point.