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Iwai, Naofumi; Kuribayashi, Toshihiro; Kawata, Norio
Kaku Busshitsu Kanri Gakkai (INMM) Nihon Shibu Dai-34-Kai Nenji Taikai Rombunshu (Internet), 4 Pages, 2013/10
In order to support international safeguards activities conducted by the IAEA, the Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of the Japan Atomic Energy Agency (JAEA) has been providing the International Training Course on State Systems of Accounting for and Control of Nuclear Material (SSAC) targeted mainly at Asian nations as a Japan's subsidized project by making good use of Japan's efforts and experience in nonproliferation. The course provides the opportunity of a facility tour and an A-bombed site visit, as well as offers lectures and practical trainings necessary to build and maintain the SSAC for those including "government officials involved in safeguard policy and regulation" and "business operators engaged in accounting". This paper discusses the summary of the SSAC training course operation held at the ISCN.
Onuki, Toshihiko; Iwai, Wakari*; Kozai, Naofumi; Suzuki, Yohei*
no journal, ,
In this study, we have studied the adsorption of U(VI) by Shewanella putrefaciens (Gram-negative) and Bacillus subtilis (Gram-positive). Results suggest that the presence of cations and organic acids affect the adsorption of by microorganisms, and the effects are different between Gram-negative and positive microorganisms.
Onuki, Toshihiko; Iwai, Wakari*; Kozai, Naofumi; Tanaka, Kazuya*; Suzuki, Yohei*
no journal, ,
In this study, we have conducted the research on the interaction of Np with Shewanella putrefaciens. The distribution coefficients of Np(V) after 2 h exposure was nearly the same as that after 4 h, indicating the adsorption of Np(V) by S. putrefaciens was attained equilibrium within 2 h. Higher Kd of Np was measured in the inert glove box than in the aerobic condition. These results indicate that Np(V) is adsorbed by the functional groups of S. putrefaciens, and Np(V) is reduced to Np(IV) by S. putrefaciens.