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A laboratory-based Laue X-ray diffraction system for enhanced imaging range and surface grain mapping

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Huxley_2015_LaueX_ray_JoAC_CC.pdf (627.2Kb)
Date
08/2015
Author
Whitley, William
Stock, Chris
Huxley, Andrew D.
Keywords
laboratory-based Laue X-ray diffraction
Grain mapping
QC Physics
NDAS
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Abstract
Although CCD X-ray detectors can be faster to use, their large-area versions can be much more expensive than similarly sized photographic plate detectors. When indexing X-ray diffraction patterns, large-area detectors can prove very advantageous as they provide more spots, which makes fitting an orientation easier. On the other hand, when looking for single crystals in a polycrystalline sample, the speed of CCD detectors is more useful. A new setup is described here which overcomes some of the limitations of limited-range CCD detectors to make them more useful for indexing, whilst at the same time making it much quicker to find single crystals within a larger polycrystalline structure. This was done by combining a CCD detector with a six-axis goniometer, allowing the compilation of images from different angles into a wide-angled image. Automated scans along the sample were coupled with image processing techniques to produce grain maps, which can then be used to provide a strategy to extract single crystals from a polycrystal.
Citation
Whitley , W , Stock , C & Huxley , A D 2015 , ' A laboratory-based Laue X-ray diffraction system for enhanced imaging range and surface grain mapping ' , Journal of Applied Crystallography , vol. 48 , pp. 1342-1345 . https://doi.org/10.1107/S1600576715009097
Publication
Journal of Applied Crystallography
Status
Peer reviewed
DOI
https://doi.org/10.1107/S1600576715009097
ISSN
1600-5767
Type
Journal article
Rights
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8862

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