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HTTR(高温工学試験研究炉)の試験・運転と技術開発(2006年度)

Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2006)

高温工学試験研究炉部

Department of HTTR

日本原子力研究開発機構大洗研究開発センターのHTTR(高温工学試験研究炉)は、熱出力30MWの黒鉛減速ヘリウムガス冷却型原子炉で、我が国初の高温ガス炉である。平成18年度は、中性子検出器交換作業及び反応度制御設備の分解点検作業を実施するとともに、施設定期検査の合格証を取得した。また安全性実証試験として、制御棒引抜試験,循環機回転数低下試験,循環機停止試験を実施した。本報告書は、平成18年度(2006年)のHTTRの運転と保守及び各種技術開発の状況等について紹介する。

The High Temperature Engineering Test Reactor (HTTR) constructed at the Oarai Research and Development Center of the Japan Atomic Energy Agency (JAEA) is the first high-temperature gas-cooled reactor (HTGR) in Japan. The HTTR is a graphite-moderated and helium gas-cooled reactor with 30 MW of thermal power. In fiscal year 2006, periodical inspection, exchange of wide range monitoring neutron detectors and overhaul of a reactivity control system were conducted, and safety demonstration tests were carried out. This report summarizes activities and test results on HTTR operation and maintenance as well as safety demonstration tests and several R&Ds, which were carried out in the fiscal year 2006.

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