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Title
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Comparison of x-ray absorption and emission techniques for the investigation of paintings
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Author
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Abstract
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| Four x-ray techniques: computed radiography, emission radiography, energy-resolved radiography and imaging x-ray fluorescence were compared using four mock-up panel paintings. The paintings have different stratigraphy and pigments and are representative for different historical periods. One of the paintings has a hidden underlying painting. The type of pigments used mainly influences the information obtained by both the emission and absorption measurements; high-Z white pigment and high-Z color pigments giving the best contrast. Each of the techniques revealed interesting aspects of the paintings, but none of them could reveal the hidden painting to a satisfactory level. Due to the statistical quality of the spectral data, x-ray fluorescence gives elemental images with high contrast. The radiographic images are better to reveal the internal structure. Imaging x-ray fluorescence and energy-resolved radiography measurements can be done simultaneously, and the combination has the highest potential for the study of complex multilayer paintings. Copyright (c) 2015 John Wiley & Sons, Ltd. |
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Language
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English
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Source (journal)
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X-ray spectrometry. - London
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Publication
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London
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2015
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ISSN
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0049-8246
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DOI
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10.1002/XRS.2591
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Volume/pages
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44
:3
(2015)
, p. 141-148
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ISI
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000353644500010
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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