1. Mitsui Engineering and Shipbuilding Company, Limited, 1 Yawatakaigandori, Ichihara, Chiba 290-8531, Japan
2. National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan
3. Central
Research Laboratory, Hitachi, Limited, 2520 Akanuma, Hatoyama, Saitama 350-0395, Japan
4. High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
5. Allied
Health Sciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan