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Study of ancient Islamic gilded pieces combining PIXE-RBS on external microprobe with sem images

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Numerous metallic objects with very aesthetic and technological qualities have been recovered by archaeological excavations. Adequate processes of restoration and conservation treatments require the accurate determination of the elemental composition and distribution within the objects, as well as the identification of the nature and distribution of the corrosion products. Ideally the identification method should cause no alteration in the sample. In this work, different archaeological pieces with a gilded look have been characterized using simultaneously PIXE and RBS at the CMAM external microprobe in order to study the gilding metalworking done in the Iberian Peninsula during the Middle Ages. The gold layer thickness and its elemental concentrations of Ag, Au and Hg were determined by both techniques and compared with the scanning electron microscopy images obtained for some fragments of pieces.

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Correspondence to J. Chamón.

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29.30.Kv; 87.64.-t

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Ynsa, M., Chamón, J., Gutiérrez, P. et al. Study of ancient Islamic gilded pieces combining PIXE-RBS on external microprobe with sem images. Appl. Phys. A 92, 235–241 (2008).

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