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Related Experiment Video

Updated: Mar 23, 2026

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
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Interlaced X-ray diffraction computed tomography.

Antonios Vamvakeros1, Simon D M Jacques2, Marco Di Michiel3

  • 1Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, England; Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot, Harwell, Oxfordshire OX11 0FA, England.

Journal of Applied Crystallography
|April 6, 2016
PubMed
Summary
This summary is machine-generated.

A novel X-ray diffraction computed tomography strategy offers flexible resolution choices post-experiment. This enables time-resolved or high-spatial-resolution *in situ* studies of dynamic or static systems.

Keywords:
X-ray diffraction computed tomographyXRD-CTchemical tomographyhyperspectral tomography

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Analytical Chemistry

Background:

  • *In situ* studies require adaptable data acquisition for diverse dynamic processes.
  • Traditional X-ray diffraction computed tomography (XRD-CT) often involves a trade-off between temporal and spatial resolution.
  • Optimizing resolution post-experiment is crucial for maximizing insights from complex chemical systems.

Purpose of the Study:

  • To introduce a flexible data-collection strategy for X-ray diffraction computed tomography (XRD-CT).
  • To enable post-experiment selection between temporal and spatial resolution.
  • To demonstrate the application of this strategy for *in situ* reactor studies.

Main Methods:

  • Development of an interlaced scanning approach for XRD-CT data collection.
  • Application of the strategy to study a Manganese-Sodium-Tungsten/Silica (Mn-Na-W/SiO2) fixed-bed reactor *in situ*.
  • Analysis of data to demonstrate tunable temporal and spatial resolution.

Main Results:

  • The proposed strategy allows for post-experiment tuning of temporal and spatial resolution.
  • Successful *in situ* time-resolved and high-spatial-resolution studies of a fixed-bed reactor were achieved.
  • The method proved effective for observing dynamic changes and static structural features.

Conclusions:

  • The developed XRD-CT data-collection strategy offers unprecedented flexibility for *in situ* investigations.
  • This approach can be extended to other pencil-beam tomographic techniques.
  • Future work can further enhance the ability to tune statistical, temporal, and spatial resolutions.