Depth‐resolved Laue microdiffraction with coded apertures. Issue 5 (30th August 2022)

• Record Type: Journal Article
• Authors: Gürsoy, Doğa; Sheyfer, Dina; Wojcik, Michael; Liu, Wenjun; Tischler, Jonathan Z.
• Is Part Of: Journal of applied crystallography. Volume 55:Issue 5(2022)
• Page Start: 1104
• Page End: 1110
• Publication Date: 2022-08-30
• Subjects: X‐ray diffraction -- Laue microscopy -- coded sensing; Crystallography -- Periodicals; 548.05
• DOI: 10.1107/S1600576722007099
• Languages: English
• ISSNs: 0021-8898

Abstract

Abstract : A new Laue microdiffraction microscopy technique is introduced based on coded apertures for rapidly imaging the 3D microstructure of crystalline materials. Abstract : A rapid data acquisition and reconstruction method is introduced to image the crystalline structure of materials and the associated strain and orientations at micrometre resolution using Laue diffraction. The method relies on scanning a coded aperture across the diffracted X‐ray beam from broadband illumination and a reconstruction algorithm to resolve Laue microdiffraction patterns as a function of depth along the incident illumination path. It provides rapid access to full diffraction information for sub‐micrometre volume elements in bulk materials. Both the theory and the experimental validation of this imaging approach are presented.