Journal
MRS BULLETIN
Volume 48, Issue 2, Pages 124-133Publisher
SPRINGER HEIDELBERG
DOI: 10.1557/s43577-022-00342-1
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In this study, we propose a machine learning approach to identify crystalline line defects in samples from raw X-ray diffraction data without the need for image reconstruction, demonstrating the potential of automated machine learning approaches.
X-ray Bragg coherent diffraction imaging is a powerful technique for operando and in situ materials characterization and provides a unique means of quantifying the influence of one-dimensional (1D) and two-dimensional (2D) material defects on material response. However, obtaining full images from raw x-ray diffraction data is nontrivial and computationally intensive, precluding real-time experimental feedback. Here, we present a machine learning approach to identify the presence of crystalline line defects (edge and screw) in samples from the raw, 2D, coherent diffraction data without the need for image reconstruction through iterative phase retrieval. We compare different approaches to designing neural networks for this application and demonstrate the potential of automated ML (autoML) approaches.
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