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Yui, Mikazu; Ishikawa, Hirohisa; Watanabe, Atsuo*; Yoshino, Kyoji*; Umeki, Hiroyuki; Hioki, Kazumasa; Naito, Morimasa; Seo, Toshihiro; Makino, Hitoshi; Oda, Chie; et al.
JAEA-Research 2010-015, 106 Pages, 2010/05
This report summarizes the activity of Phase I of Waste Management Working Group of the United States - Japan Joint Nuclear Energy Action Plan started in 2007. The working group focused on consolidation of the existing technical basis between the U.S. and Japan and the joint development of a plan for future collaborative activities. Firstly, the political/regulatory frameworks related to nuclear fuel cycles in both countries were reviewed. The various advanced fuel cycle scenarios in both countries were surveyed and summarized. Secondly, the waste management/disposal system optimization was discussed. Repository system concepts for the various classifications of nuclear waste were reviewed and summarized, then disposal system optimization processes and techniques were reviewed, and factors to consider in future repository design optimization activities were also discussed. Finally the potential collaboration areas and activities related to the optimization problem were extracted.
Kurosawa, Susumi; Tanaka, Satoru*; James, S. C.*; Yui, Mikazu
Journal of Nuclear Science and Technology, 43(5), p.605 - 609, 2006/05
Times Cited Count:8 Percentile:49.43(Nuclear Science & Technology)In this work, the effective clay density as a function of interstitial pore size was estimated by applying the homogenization analysis (HA) of bentonite. In the estimation by the HA method, the interstitial pore size was set up to be 1 nm which is the smallest size equivalent to colloid. The results indicate that the interstitial pore is estimated to be 1 nm or less if the effective clay density in the buffer is higher than 1.5 Mg/m and it is also suggested that the penetration of colloidal fine particles in the buffer did not occur.
Pikuz, S. Jr.*; Wagenaars, E.*; Culfa, O.*; Dance, R.*; Rossall, A.*; Tallents, G.*; Faenov, A.*; Kmpfer, T.*; Schulze, K.*; Uschmann, I.*; et al.
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