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- Title
Determination of gold leaf thickness in a Renaissance illumination using a nondestructive approach.
- Authors
Pessanha, Sofia; Guerra, Mauro; Longelin, Stephane; Le Gac, Agnès; Manso, Marta; Carvalho, Maria Luisa
- Abstract
In this work, the thickness of the gold leaf applied in the Manueline foral charter of Murça (illuminated in 1512) will be determined using X-ray fluorescence. In the frontispiece of the Manueline foral charter of Murça, the capital D was gilded using a gold leaf over a priming made of lead white. The characteristic lines of Pb (namely Lα and Lβ), although attenuated in the Au layer, are still visible in the X-ray fluorescence spectra. By determining the intensity ratio Lα/Lβ and comparing it with the ratio for an infinitely thick sample, the thickness of the attenuating material can be determined. Using this methodology, the thickness of the gold leaf applied in the charter of Murça was estimated as 1.6 µm. Copyright © 2013 John Wiley & Sons, Ltd.
- Subjects
GOLD-leaf; LEAF anatomy; RENAISSANCE; X-ray fluorescence; FLUORESCENCE spectroscopy; JOHN Wiley &; Sons Ltd.
- Publication
XRS: X-ray Spectrometry, 2014, Vol 43, Issue 2, p79
- ISSN
0049-8246
- Publication type
Article
- DOI
10.1002/xrs.2518