Diffuser-based computational x-ray imaging

KyeoReh Lee; Jun Lim; Su Yong Lee; YongKeun Park

doi:10.1117/12.3000928

13 March 2024 Diffuser-based computational x-ray imaging

KyeoReh Lee, Jun Lim, Su Yong Lee, YongKeun Park

Proceedings Volume PC12851, Adaptive Optics and Wavefront Control for Biological Systems X; PC128510Q (2024) https://doi.org/10.1117/12.3000928
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We present a diffuser-based computational X-ray coherent imaging method using a speckle-correlation scattering matrix (SSM), which is based on the spatial pseudorandomness of generated speckle patterns. An X-ray diffuser was introduced to ensure the generation of pseudorandom speckle patterns on the detector. Using the SSM method, we achieved 13.9 nm image resolution, which surpasses the feature size of the diffuser (300 nm). We also apply our method to the shot-by-shot pulse characterization of an X-ray free-electron laser; and analyze the statistical properties of each pulse in intensity, position, angle, and shape.

Conference Presentation

Citation Download Citation

KyeoReh Lee, Jun Lim, Su Yong Lee, and YongKeun Park "Diffuser-based computational x-ray imaging", Proc. SPIE PC12851, Adaptive Optics and Wavefront Control for Biological Systems X, PC128510Q (13 March 2024); https://doi.org/10.1117/12.3000928

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