Basic information on solvent extraction using ADAAM for Am/Cm separation

Sasaki, Yuji  ; Kaneko, Masashi   ; Ban, Yasutoshi  ; Suzuki, Hideya*

Am and Cm as minor actinides, have the similar chemical behavior, thus both metals are, in general, hard to separate. On the other hand, separation of Am with long-lived radionuclide to transmute from Cm to emit neutrons by spontaneous fission has been requesting. Although the mutual separation by solvent extraction is a tough work, ADAAM (Alkyl DiAmide AMine) developed in JAEA show high separation factor of Am/Cm of around 6 at HNO-n-dodecane system. We focus on basic research on solvent extraction using ADAAM and investigate the physical properties, i.e., polarity and viscosity, and separation factors of Am/Cm variated in combination with water-soluble masking agent of An, and will show the information at the meeting.