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$$^{99}$$Mo-$$^{rm 99m}$$Tc production development by (n,$$gamma$$) reaction

(n,$$gamma$$)反応による$$^{99}$$Mo-$$^{rm 99m}$$Tc製造技術開発

出雲 寛互; 西方 香緒里  ; 木村 明博 ; 谷本 政隆 ; 土谷 邦彦 ; 石原 正博 ; 神永 雅紀  

Izumo, Hironobu; Nishikata, Kaori; Kimura, Akihiro; Tanimoto, Masataka; Tsuchiya, Kunihiko; Ishihara, Masahiro; Kaminaga, Masanori

世界的には、$$^{99}$$Moのほとんどが、ウランをターゲットとした核分裂法により製造されているが、再稼動後のJMTRでは、安価で、高い核不拡散性を有し、かつ放射性廃棄物の低減等に効果的であることから、(n,$$gamma$$)法による$$^{99}$$Moの一部国産化を行うことを目指している。JMTRを用いた(n,$$gamma$$)法による$$^{99}$$Moの一部国産化に関する主な技術的検討課題と技術開発現状の概要を述べる。

Currently, in case of Japan, supply of $$^{99}$$Mo depends only on imports from foreign countries, therefore JAEA has a plan to produce $$^{99}$$Mo, a parent nuclide of $$^{rm 99m}$$Tc. $$^{rm 99m}$$Tc is most commonly used as a radiopharmaceutical in the field of nuclear medicine. The renewed JMTR will be started from the later half of JFY2012, and it is expected to various fields. As one of effective uses of the JMTR, and JMTR contribute to produce $$^{99}$$Mo by (n,g) method. Therefore, JAEA has been performed the R&D on production method of $$^{99}$$Mo-$$^{rm 99m}$$Tc in JMTR. In this report, the study items and outline of the R&D for the items will be explained.

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