1. AECL, Chalk River Laboratories, Chalk River, Ontario, K0J 1J0 Canada Interatomics, Victoria, British Columbia, V8Z 7X8 Canada, jasawicki@shaw.ca
2. Studsvik Nuclear AB, S-61182 Nyköping, Sweden
3. Électricité de France, CEIDRE – Département Etudes, F-93206 Saint Denis, France