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研究用原子炉JRR-3におけるRI製造の再開

Resumption of radioisotope production in the Research Reactor JRR-3

遠藤 章   

Endo, Akira

日本原子力研究開発機構原子力科学研究所の研究用原子炉JRR-3は、2021年2月に10年ぶりに運転を再開した。その後調整運転を経て、7月から11月まで実験装置や照射設備の利用を行い、2021年の運転を計画通り終了した。この期間、Ir-192, Au-198を製造し治療用に供給するとともに、Mo-99製造に向けた試験照射にも着手した。これは、東日本大震災以降、国内で止まっていた原子炉によるRI製造の再開である。本稿では、JRR-3を利用した医療用RI製造の今後の取り組みについて紹介する。

The research reactor JRR-3 at the Nuclear Science Research Institute of Japan Atomic Energy Agency resumed its operation in February 2021 for the first time in 10 years. After commissioning, neutron beam experimental apparatus and irradiation facilities were used from July to November, and the operation in 2021 was completed as planned. During this period, Ir-192 and Au-198 were produced and supplied for therapeutic use, and test irradiation for the production of Mo-99 was performed. This is resumption of radioisotope production using nuclear reactors in Japan, which had stopped after the Great East Japan Earthquake. This article introduces future efforts of radioisotope production for medical applications in JRR-3.

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