[3M08-11] Shielding Material

[3M11] Discussion on the Standardization of Shielding Material focusing on Shielding Concrete

(16)The evaluation of influence to dose rate by major chemical content fluctuation in concrete.

*Mikihiro Nakata¹, Toshihisa Tsukiyama², Erina Matsuyama³, Kazuaki Kosako⁴, Toshio Amano⁵, Hidenori Kawano⁶ (1. MHI NS, 2. Hitachi GE, 3. Toshiba Energy Systems & Solutions Cor, 4. Shimizu Corp., 5. CTC, 6. ATOX)

Keywords:Shielding Design, Shielding Concrete, Chemical Contents of Concrete , Neutron Dose Rate

The case study of the inluence to dose rate by major chemical content fluctuation in concrete is implemented based on the investigation of standard chemical contents of shielding concrete. Reffering the results of previously implemented dose rate case study with the chemical contents of existing concrete and assumed contents, the influence to dose rate by major chemical contents in concrete is investigated and summarised.