Study of radiolysis of HONTA extractant for MA/Ln separation

Toigawa, Tomohiro ; Suzuki, Hideya; Ban, Yasutoshi ; Ishii, Sho; Matsumura, Tatsuro

Degradation of extractants and generation of radiolytic products are considered as problem for feasibility of the minor actinides separation process. In this study, degradation amount of hexaoctyl-nitrilotriacetamide (HONTA), which is a candidate extaractant for MA/Ln separation, and its products yields were obtained by using -rays emitted from Co-60. Our results showed the cleavage sites in HONTA radiolysis and suggest that the mechanism for HONTA radiolysis is differ depending on the absorbed dose.

Language	:	Japanese
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Meeting title	:	日本原子力学会第12回再処理・リサイクル部会セミナー
Held date	:	2016/12
Location (city)	:	東京
Location (country)	:	日本
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Keywords	:	Radiolysis; Solvent Extraction; Minor Actinides; Partitioning; HONTA; P&T technology
Research Facility	:	BECKY(バックエンド研究施設) ;コバルト60照射施設
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Registration No. : BB20161609
JAEA Abstracts No. :
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