1. Institute for Marine-Earth Exploration and Engineering,JAMSTEC,Yokosuka,Japan
2. Ibaraki University,Graduate School of Science and Engineering,Ibaraki,Japan
3. Tokyo University of Marine Science and Technology,Academic Research Institute,Tokyo,Japan
4. Sector of Fast Reactor and Advanced Reactor Research and Development JAEA,Ibaraki,Japan
5. Technology Management Office Ikegami Tsushinki Co., Ltd,Tokyo,Japan