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Title
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X-ray diffraction mapping for cultural heritage science : a review of experimental configurations and applications
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Author
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Abstract
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| X-ray diffraction (XRD) mapping consists in the acquisition of XRD patterns at each pixel (or voxel) of an area (or volume). The spatial resolution ranges from the micrometer (mu XRD) to the millimeter (MA-XRD) scale, making the technique relevant for tiny samples up to large objects. Although XRD is primarily used for the identification of different materials in (complex) mixtures, additional information regarding the crystallite size, their orientation, and their in-depth distribution can also be obtained. Through mapping, these different types of information can be located on the studied sample/object. Cultural heritage objects are usually highly heterogeneous, and contain both original and later (degradation, conservation) materials. Their structural characterization is required both to determine ancient manufacturing processes and to evaluate their conservation state. Together with other mapping techniques, XRD mapping is increasingly used for these purposes. Here, the authors review applications as well as the various configurations for XRD mapping (synchrotron/laboratory X-ray source, poly-/monochromatic beam, micro/macro beam, 2D/3D, transmission/reflection mode). On-going hardware and software developments will further establish the technique as a key tool in heritage science. |
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Language
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English
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Source (journal)
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Chemistry: a European journal. - Weinheim
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Publication
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Weinheim
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Wiley-v c h verlag gmbh
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2019
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ISSN
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0947-6539
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DOI
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10.1002/CHEM.201903284
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Volume/pages
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19 p.
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ISI
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000501927300001
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Pubmed ID
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31609033
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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