1. Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, NL-2628CD Delft, The Netherlands
2. Centre de Recherche et de Restauration des Musées de France, CNRS UMR171, Palais du Louvre, Porte des Lions, 14 Quai François Mitterrand, F-75001 Paris, France
3. European Synchrotron Radiation Facility, Polygone Scientifique Louis Néel -6, rue Jules Horowitz − F-38000 Grenoble, France