1. Japan Atomic Energy Agency, 4002 Narita Oarai Higashi-ibaraki-gun Ibaraki 311-1393, Japan
2. Japan Atomic Power Company Ltd., 1-1, Mitoshiro-chyo, Kanda Chiyoda-ku, Tokyo 101-0053, Japan
3. Mitsubishi FBR Systems Inc., 2-34-17, Jingumae, Shibuya-ku, Tokyo 105-001, Japan