Relics in medieval altarpieces? Combining X-ray tomographic, laminographic and phase-contrast imaging to visualize thin organic objects in paintings

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...

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Vydáno v:Journal of synchrotron radiation Ročník 15; číslo 1; s. 55 - 61
Hlavní autoři: Krug, Kris, Porra, Liisa, Coan, Paola, Wallert, Arie, Dik, Joris, Coerdt, Andrea, Bravin, Alberto, Elyyan, Muthaffar, Reischig, Péter, Helfen, Lukas, Baumbach, Tilo
Médium: Journal Article
Jazyk:angličtina
Vydáno: 5 Abbey Square, Chester, Cheshire CH1 2HU, England Blackwell Publishing Ltd 01.01.2008
Témata:
imaging
laminography
phase contrast
tomography
X-ray
ISSN:1600-5775, 0909-0495, 1600-5775
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Shrnutí: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.
Bibliografie:ark:/67375/WNG-DV78K1Z6-3
ArticleID:JSYGF5005
istex:8DD3AB249C0EC7916906C81ECA71F129F599C101
ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S0909049507045438