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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 鈴木 善貴石田 卓也鈴木 祐未松倉 実黒崎 文雄西方 香緒里三村 均土谷 邦彦
- Publication Date
- 2016-12
- Publication Date (W3CDTF)
- 2016
- Alternative Title
- Preliminary tests on adsorption / desorption of alumina adsorbents
- Periodical title
- JAEA-Technology 2016-027
- Target Audience
- 一般
- Note (General)
- 出版タイプ： NA照射試験炉センターでは、(n,$\gamma$)法による$^{99}$Mo製造に関する技術開発を行っている。(n,$\gamma$)反応による$^{99}$Mo製造は簡便な方法であり、核不拡散や廃棄物管理の観点からも有利である。しかしながら、本方法による$^{99}$Moの比放射能が低いことから、高い放射能濃度を有する$^{99m}$Tc製品の製造が困難である。これまで、高いMo吸着効率を持つ無機高分子ジルコニウム化合物(Polyzirconium Compound: PZC)及び無機高分子チタニウム化合物(Polytitanium Compound: PTC)のようなMo吸着剤の開発が進められている。これらのMo吸着剤のジェネレータへの利用のためには、Mo吸着剤に含まれる構成元素の影響を評価し、$^{99m}$Tc製品の品質を保証することが必要である。本報告書において、Mo吸着剤の開発の現状調査を行い、医療用$^{99}$Mo/$^{99m}$Tcジェネレータに使用されているアルミナに着目し、結晶構造や比表面積のような異なった特性による3種類のアルミナのMo吸着特性/Mo溶離特性を調べた。The research and development (R\&D) on the production of $^{99}$Mo/$^{99m}$Tc by (n,$\gamma$) method has been carried out in the Neutron Irradiation and Testing Reactor Center. The $^{99}$Mo production by (n,$\gamma$) reaction is a simple and easy method, and it also is advantageous from viewpoints of nuclear proliferation resistance and waste management. However, it is difficult to produce the $^{99m}$Tc solution with high radioactive concentration because the specific radioactivity of $^{99}$Mo by this method is extremely low. Up to now, various Mo absorbents such as Polyzirconium Compound (PZC) and Polytitanium Compound (PTC) have been developed with high Mo adsorption efficiency. It is necessary for utilization to the generator of these absorbents to evaluate the effect of elements containing these absorbents and to assure the quality of $^{99m}$Tc solution. In this report, the status of R\&D of the Mo adsorbents was investigated. The alumina as Mo adsorbent, which uses in medical $^{99}$Mo/$^{99m}$Tc generator, was focused and Mo adsorption/desorption properties of three kinds of alumina was evaluated by different properties such as crystal structure and specific surface.
- Source
- /JAEA-Technology-2016-027.pdf （fulltext）