Institution: | (1) Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, 319-11 Ibaraki, Japan;(2) Department of Nuclear Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-01 Nagoya, Japan;(3) Department of Physics, Faculty of Science, Hiroshima University, 730 Hiroshima, Japan |