1. Japan Nuclear Cycle Development Institute Tokai Works, Tokai-mura, Naka-gun, Ibaraki-ken, Japan
2. Tokyo Institute of Technology Research Laboratory for Nuclear Reactors Ohokayama, Meguro-ku, Tokyo, Japan
3. Tsukasa Sokken Company, Ltd. Tamazutsumi 1-19-4, Setagaya-ku, Tokyo, Japan