1. *Research & Innovation Center, Mitsubishi Heavy Industries, LTD., Takasago, Hyogo 676-8686, Japan.
2. **School of Engineering, The University of Tokyo, Tokai, Ibaraki 319-1188, Japan.
3. ***Nuclear Energy Systems, Mitsubishi Heavy Industries, LTD., Kobe, Hyogo 652-8585, Japan.
4. ****The Japan Atomic Power Company, Taitou-ku, Tokyo 110-0005, Japan.
5. *****New Industry Creation Hatchery Center, Tohoku University, Sendai, Miyagi 980-8579, Japan.