Research Reactor Institute, Kyoto University, Asashiro-nishi Kumatori-cho, Osaka, 590-0494 Japan
Research Reactor Institute, Kyoto University, Asashiro-nishi Kumatori-cho, Osaka, 590-0494 Japan ; Tobishima Corporation, Kimagase, Noda-shi, Chiba, 270-0222 Japan
Tobishima Corporation, Kimagase, Noda-shi, Chiba, 270-0222 Japan
Tobishima Corporation, Kimagase, Noda-shi, Chiba, 270-0222 Japan ;
Kyoto University, Yoshidahonmachi, Sakyo-ku, Kyoto, 606-8501 Japan