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Related Concept Videos

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Related Experiment Video

Updated: Aug 16, 2025

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Reconstruction algorithms for grain mapping by laboratory X-ray diffraction contrast tomography.

Haixing Fang1,2,3, Wolfgang Ludwig2,3, Pierre Lhuissier1

  • 1Université Grenoble Alpes, Grenoble INP, CNRS SIMaP, 38402 Grenoble, France.

Journal of Applied Crystallography
|December 26, 2022
PubMed
Summary
This summary is machine-generated.

Laboratory diffraction contrast tomography (LabDCT) enables non-destructive 3D grain mapping. New, accessible reconstruction methods were developed to overcome limitations of current LabDCT techniques, promoting wider use.

Keywords:
3D imagingback calculationsdiffraction contrast tomographyforward calculationsgrain mappingreconstruction algorithms

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Area of Science:

  • Materials Science
  • Crystallography
  • X-ray Imaging

Background:

  • X-ray-based non-destructive 3D grain mapping is established at synchrotrons.
  • Laboratory diffraction contrast tomography (LabDCT) offers accessible grain mapping using laboratory X-ray sources.
  • Current LabDCT reconstruction methods have limitations in handling large grain numbers and instrument specificity.

Purpose of the Study:

  • To develop and present new grain reconstruction methods for LabDCT.
  • To overcome limitations of existing LabDCT reconstruction software.
  • To promote wider accessibility and application of LabDCT.

Main Methods:

  • Development of multiple reconstruction algorithms for LabDCT.
  • Implementation of algorithms using forward and back calculations.
  • Utilizing parallel computing for efficient algorithm implementation.

Main Results:

  • Detailed presentation of different reconstruction algorithms.
  • Description of efficient parallel computing implementations.
  • Assessment of reconstruction method performance on synthetic data.

Conclusions:

  • New LabDCT reconstruction methods address limitations of existing techniques.
  • Publicly accessible code fosters development of grain mapping on laboratory instruments.
  • The developed methods enhance the availability and application of LabDCT.