1. French Alternative Energies and Atomic Energy Commission, CEA, Nuclear Energy Division, Radio Chemistry & Processes Department, DRCP, BP 17171, F-30207 Bagnols sur Cèze, France
2. European Synchrotron Radiation Facility, 38000 Grenoble, France
3. iHelmholtz Zentrum Dresden-Rossendorf, Institute of Resource Ecology, 01314 Dresden, Germany
4. Institut de Chimie Séparative de Marcoule, Université de Montpellier 2, UMR 5257 CEA/CNRS/UM2/ENSCM BP 17171 30207 Bagnols
sur Cèze Cedex, France