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Relics in medieval altarpieces? Combining X-ray tomographic, laminographic and phase-contrast imaging to visualize thin organic objects in paintings
- Source :
- Journal of Synchrotron Radiation 15 (1), 2008, University of Helsinki
- Publication Year :
- 2007
-
Abstract
- X-ray radiography is a common tool in the study of old master paintings. Transmission imaging can visualize hidden paint layers as well as the structure of the panel or canvas. In some medieval altarpieces, relics seem to have been imbedded in the wooden carrier of paintings. These are most probably thin organic fibrous materials such as paper or textile, which in traditional radiography are shadowed by the more absorbing surrounding material. This paper studies the application potential of synchrotron-based tomographic and laminographic imaging complemented with phase-contrast imaging for detection of such relics. The techniques are applied to a dummy painting. The results demonstrate that by using these imaging methods it is possible to three-dimensionally visualize hidden cavities in panels and detect thin fibrous low-Z materials sandwiched between a high-Z paint layer and a thick wooden panel.
- Subjects :
- Nuclear and High Energy Physics
Phase contrast microscopy
FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA)
laminography
02 engineering and technology
tomography
01 natural sciences
phase contrast
law.invention
X-ray
Painting
Optics
law
0103 physical sciences
Instrumentation
010302 applied physics
Radiation
business.industry
synchrotron radiation
Phase-contrast imaging
imaging
paintings
021001 nanoscience & nanotechnology
relic
Tomography
0210 nano-technology
business
Geology
Subjects
Details
- ISSN :
- 09090495
- Volume :
- 15
- Issue :
- Pt 1
- Database :
- OpenAIRE
- Journal :
- Journal of synchrotron radiation
- Accession number :
- edsair.doi.dedup.....f74b130b8dd57d6b823575cd32eaa1c4