Bibliographic Details
| Title: |
Study of color centers induced by PIXE irradiation |
| Authors: |
Absil, J.1,2, Garnir, H.-P.1,2, Strivay, D.1,2, Oger, C.1,3, Weber, G.1,2 g.weber@ulg.ac.be |
| Source: |
Nuclear Instruments & Methods in Physics Research Section B. Dec2002, Vol. 198 Issue 1/2, p90. 8p. |
| Subjects: |
Proton-induced X-ray emission, Irradiation, Pigments |
| Abstract: |
The particle induced X-ray emission method is perfectly adapted to the study, by external beam, of art objects (like paintings) and allows non-destructive analysis of the atomic composition of the target. However, a strange phenomenon occurs during irradiation on some pigments: dark brownish stains appear, and this could be due to the formation of color centers. In fact, these darkening spots progressively fade out and disappear after a few weeks. Heat and UV light accelerate the decreasing process. The aim of this study is to understand the physical processes of the stain creation and to find a way to make stains disappear, avoiding any damage for the painting. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
