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Here, the X‐ray fluorescence technique is used to determine the thickness of a coating layer as well as to analyze the surface of objects. Four metals (Ag, Cu, Fe, Pb) were covered with increasing thicknesses of gold. The measurements were performed with a commercial handheld instrument, X‐SORT (Spectro). In double layers, the thickness of the covering layer was assessed by (a) the ratio between the...
Scanning macro‐XRF, XRF point measurements and hyperspectral reflectance imaging in the visible and near‐infrared range were combined to characterize the pigments of a Tibetan painting. The complementary use of the different investigation techniques allowed us to (a) clearly identify the pigments used by the artist, (b) strengthen the few data present in historical and contemporary sources and (c)...
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