Digital autofocusing of a coded-aperture Laue diffraction microscope

To provide optimal depth resolution with a coded-aperture Laue diffraction microscope, an accurate position of the coded-aperture and its scanning geometry need to be known. However, finding the geometry by trial and error is a time-consuming and often challenging process because of the large number...

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Bibliographic Details
Published in:Review of scientific instruments 2023-01, Vol.94 (1), p.013702-013702
Main Authors: Gürsoy, Doğa, Sheyfer, Dina, Wojcik, Michael, Liu, Wenjun, Tischler, Jonathan Z.
Format: Article
Language:English
Subjects:
Apertures
Coded aperture imaging
Computational optimization
Computer graphics
Crystal lattices
Data acquisition
Diffraction
Geometrical optics
Optimization
OTHER INSTRUMENTATION
Signal-to-noise ratio
Synchrotron radiation
Synchrotrons
X-ray diffraction
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Summary:To provide optimal depth resolution with a coded-aperture Laue diffraction microscope, an accurate position of the coded-aperture and its scanning geometry need to be known. However, finding the geometry by trial and error is a time-consuming and often challenging process because of the large number of parameters involved. In this paper, we propose an optimization approach to automate the focusing process after data is collected. We demonstrate the robustness and efficiency of the proposed approach with experimental data taken at a synchrotron facility.
ISSN:0034-6748
1089-7623
DOI:10.1063/5.0120899