Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 161, Issue -, Pages 743-747Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-583X(99)00965-9
Keywords
archaeometry; PIXE; XPS; Roman coins
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A combined PIXE and XPS analysis has been performed on a few Roman coins of the republican and imperial age. The purpose was to investigate via XPS the nature and extent of patina in order to be capable of extracting PIXE data relative to the coins bulk. The inclusion of elements from the surface layer, altered by oxidation and inclusion, is a known source of uncertainty in PIXE analyses of coins, performed to assess the composition and the provenance. (C) 2000 Elsevier Science B.V. All rights reserved.
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