1. Tokyo Power Technology Ltd., Nuclear Power Branch, Toyosu Arban Point Building, 4F 5-5-13 Toyosu, Koto-ku, Tokyo 135-0061, Japan
2. University of Toyama, Organization for Research Promotion, Hydrogen Isotope Research Center, 3190 Gofuku, Toyama City, Toyama 930-8555, Japan
3. University of Toyama, Organization for Research Promotion, Life Science Research Center, 2630 Sugitani, Toyama City, Toyama 930-0194, Japan