[3B01-10] Dose Estimation

[3B05] OHI-4 Regarding the effect of zinc injection on reducing radiation source exposure

Effect of reducing radiation doses in the working environment by injecting zinc into the primary coolant

MITSUNORI HANABATA¹, *TAKAHIRO SASAOKA¹, TOMOKAZU NAKAGAWA¹, MASAKI NISHINO¹, YASUHIRI TATEDA¹ (1. kepco)

Keywords:primary coolant, zinc injection, Reduction of environmental dose, Reduction of exposure dose

Regarding zinc injection into the primary coolant, which is being implemented as a radiation exposure reduction measure at Unit 4 of the Ohi Nuclear Power Plant, we will introduce the results of the radiation source reduction effect and exposure dose from the start of injection to the latest operation cycle.