1. Department of Thermonuclear Fusion Research, Japan Atomic Energy Research Institute Tokai Research Establishment, 319-11 Tokai-mura, Naka-gun, Ibaraki-ken, JAPAN 0292-82-5577
2. Materials Science & Technology Division Tritium Science & Technology Group Los Alamos National Laboratory, MS C348 Los Alamos, New Mexico, 87545 USA 505-667-1410