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Report No.

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 $$gamma$$-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.



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