1. EDF R&D, MMC department, Route de Sens Ecuelles, 77818 Moret Sur Loing Cedex, France
2. INPG SIMAP, 1130, rue de la Piscine - BP 75 - F-38402 St Martin D Heres Cedex, France
3. Univ. of Manchester, School of Materials, Grosvenor St., Manchester M1 7HS, UK
4. ESRF, ID11, 6 Rue Jules Horowitz – BP 220 –F- 38043 Grenoble Cedex 9, France