Affiliation: | 1. Laboratory of Nuclear Science, Tohoku University, Sendai 982-0826, Japan;2. Department of Physics, Tohoku University, Sendai 980-8578, Japan;3. Department of Physics, Yamagata University, Yamagata 990-8560, Japan;4. Ichinoseki National College of Technology, Ichinoseki 021-8511, Japan;5. College of Bioresource Sciences, Nihon University, Fujisawa 252-8510, Japan;6. Japan Synchrotron Radiation Research Institute, Mikazuki 679-5198, Japan |