1. Nuclear Energy Division, Research Department on Mining and Fuel Recycling Processes; CEA; Atalante Analysis Laboratory, BP 17171 Bagnols sur Cèze 30207 France
2. Safeguards Analytical Services; International Atomic Energy Agency; Tokyo Regional Office, Seibunkan Bldg. 9F, 1-5-9 Iidabashi Tokyo 102-0072 Japan