Premium
The complementary use of PIXE‐α and XRD non‐destructive portable systems for the quantitative analysis of painted surfaces
Author(s) -
Pappalardo L.,
Pappalardo G.,
Amorini F.,
Branciforti M. G.,
Romano F. P.,
de Sanoit J.,
Rizzo F.,
Scafiri E.,
Taormina A.,
Gatto Rotondo G.
Publication year - 2008
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1040
Subject(s) - hematite , cinnabar , goethite , diffractometer , fresco , mineralogy , materials science , geology , optics , chemistry , physics , art , scanning electron microscope , organic chemistry , adsorption , painting , visual arts
This work presents the results of a non‐destructive analysis carried out using the portable PIXE‐α (particle‐induced x‐ray emission) system developed in collaboration by the INFN/LANDIS (Catania, Italy), the CNR/IBAM (Catania, Italy) and the CEA/LIST (Saclay, France), and the portable XRD (x‐ray diffraction) diffractometer recently upgraded at the INFN/LANDIS. It is shown that using a combination of the two techniques, quantitative analysis is possible in some cases. The results of its application to Roman fresco fragments obtained from different archaeological sites in Catania (Italy) are presented. These results make it possible to identify the quantitative presence of various pigments: coloured earths, ochre, hematite, goethite, cinnabar, and Egyptian blue have been identified and quantified. Copyright © 2008 John Wiley & Sons, Ltd.