1. Division of Biophysics, Physiology, School of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi329-0498, Japan
2. Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori, Sennan-gun, Osaka590-0494, Japan
3. Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hotogaya-ku, Yokohama240-8501, Japan
4. Japan Synchrotron Radiation Research Institute, 1-1-1, Koto, Sayo-cho, Sayo-gun, Hyogo679-5148, Japan
5. Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe657-8501, Japan