原子力発電所における放射線被ばく低減を目指した線量率分布評価ツールの開発

英字タイトル:
Development of Evaluation Tool for Radiation Distribution Aimed at Dose Reduction at Nuclear Power Plant
著者:
稲垣博光 Hiromitsu INAGAKI 葛谷敏男 Toshio KUZUYA
発刊日: 2013年7月24日
公開日: 2019年6月28日

カテゴリ: 第10回

キーワードタグ:
Calculation codeDose reductionPCVRadiation shieldWater Chemistry

概要

We have developed a calculation tool for the radiation distribution of the work areas in the primary containment vessel (PCV) of Unit 3, 4 and 5 at Hamaoka NPS. This tool can be used to evaluate quantitatively the effects of the dose reduction methods by water chemistry control or radiation management. This tool is composed of two calculation codes; water chemistry code (ACTTUBE), radiation dose rate code (RADTUBE). ACTTUBE calculates the piping dose rates based on mass balance of the radionuclides in the water. RADTUBE calculates the dose rate distribution based on the radiation shielding calculation. Visualization function of the radiation distribution in PCV has four types of display mode of calculated radiation distribution in PCV using wireless controller and 3D glasses/monitor. We work on improvement of the tool in order to dose reduction at nuclear power plant.