1. Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, Tokyo, Japan
2. Radioactive Waste Management Funding and Research Center, Tokyo, Japan
3. Graduate School of Engineering, Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka, Japan
4. Graduate School of Engineering, Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, Japan
5. Professor Emeritus, Hokkaido University, Sapporo, Japan