Study on high temperature radiolysis of water relevant to water chemistry

2014 Fiscal Year Final Research Report

• Project/Area Number: 23246168
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: The University of Tokyo
• Principal Investigator: KATSUMURA Yosuke 東京大学, 工学(系)研究科(研究院), 教授 (70111466)
• Co-Investigator(Kenkyū-buntansha): KUDO Hisaaki 東京大学, 大学院工学系研究科, 教授 (00334318) ; MUROYA Yusa 大阪大学, 産業科学研究所, 准教授 (40334320) ; LIN Mingzhang 日本原子力研究開発機構, 原子力科学研究所, 任期付研究員 (50465994) ; YAMASHITA Shinichi 東京大学, 大学院工学系研究科, 助教 (20511489)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 高温水化学 / パルスラジオリシス / 超臨界水 / 10B(n,α)7Li反応 / モンテカルロシミュレーション / 水分解生成物 / G値

Outline of Final Research Achievements

The coolant water in nuclear reactor is exposed to intense radiations such as fast neutrons and gamma-rays at high temperatures and decomposed, which is one of the important factors to control the chemical conditions of the coolant water. Therefore, understanding of water radiolysis at elevated temperatures is inevitably important not only technologically but also scientifically. In the present research project, we have picked up three subjects: (1) ultrafast pulse radiolysis, (2) Inhibition of H2 evolution via H2 addition in high LET radiolysis of water, and (3) Monte Carlo simulation of water radiolysis by 10B(n,α)7Li reaction.

Free Research Field

工学