Millimetric scale FY-TEY XAS mapping of cultural heritage samples

Due to the lateral and in-depth inhomogeneity of Cultural Heritage samples, it is crucial to collect spatial information on a wide sample area. For this reason, we propose here to analyze different lustered ceramic and corroded metallic samples from different archaeological excavations to characterize the spatial environment of different atomic species. Luster samples present metallic nanoparticles in the glaze matrix with different coordination states (metallic in the luster layer and oxide in the glaze), while corroded metallic samples present different compounds of the same metal (eg. Cu, Fe, Zn, Sn) on the surface and on the bulk. Coupling FY and TEY with mapping will thus give precious information on the different structures present both on the surface and on the sample bulk.