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材料試験炉(JMTR)を用いた軽水炉材料の照射研究

Irradiation study on structural materials for light water reactors using JMTR

知見 康弘; 西山 裕孝 

Chimi, Yasuhiro; Nishiyama, Yutaka

高度化軽水炉燃材料研究グループでは、高経年化技術評価等における国の規制判断に必要な技術的知見を収集・整備することを目的として、平成24年度に再稼働する予定の材料試験炉(JMTR)を活用し、実機模擬環境での軽水炉材料の照射研究(原子炉圧力容器の照射脆化及び炉心シュラウドの照射誘起応力腐食割れ(IASCC)等)を実施する。

In the Fuels and Materials Irradiation Research Group, in order to provide the technical information for the safety regulation of the Japanese government on the ageing management technical evaluation for the current commercial light water reactors (LWRs), irradiation studies on the structural materials for LWRs (i.e. irradiation embrittlement of reactor pressure vessels and irradiation-assisted stress corrosion cracking (IASCC) of reactor core shroud) under simulated LWR water and irradiation conditions will be performed by using the Japan Materials Testing Reactor (JMTR), which will restart in FY 2012.

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