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Interlaced X-ray diffraction computed tomography

Vamvakeros, A; Jacques, SDM; Di Michiel, M; Senecal, P; Middelkoop, V; Cernik, RJ; Beale, AM; (2016) Interlaced X-ray diffraction computed tomography. Journal of Applied Crystallography , 49 pp. 485-496. 10.1107/S160057671600131X. Green open access

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Abstract

An X-ray diffraction computed tomography data-collection strategy that allows, post experiment, a choice between temporal and spatial resolution is reported. This strategy enables time-resolved studies on comparatively short timescales, or alternatively allows for improved spatial resolution if the system under study, or components within it, appear to be unchanging. The application of the method for studying an Mn–Na–W/SiO2 fixed-bed reactor in situ is demonstrated. Additionally, the opportunities to improve the data-collection strategy further, enabling post-collection tuning between statistical, temporal and spatial resolutions, are discussed. In principle, the interlaced scanning approach can also be applied to other pencil-beam tomographic techniques, like X-ray fluorescence computed tomography, X-ray absorption fine structure computed tomography, pair distribution function computed tomography and tomographic scanning transmission X-ray microscopy.

Type: Article
Title: Interlaced X-ray diffraction computed tomography
Open access status: An open access version is available from UCL Discovery
DOI: 10.1107/S160057671600131X
Publisher version: http:dx.doi.org/10.1107/S160057671600131X
Language: English
Additional information: 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.
Keywords: X-ray diffraction computed tomography, XRD-CT, chemical tomography, hyperspectral tomography
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1493371
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