1. ICGM, Univ. Montpellier, CNRS, Montpellier, France
2. Alistore-ERI, CNRS, Amiens, France
3. Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac, France
4. RS2E, CNRS, Amiens, France
5. Elettra-Sincrotrone Trieste, Trieste, Italy
6. Department of Physics, Chalmers University of Technology, Göteborg, Sweden