Recent progress in grating-based microscopic x-ray phase tomography

Atsushi Momose; Ryosuke Ueda; Mingjian Cai; Zhuoxuan Zhao; Sam Kalirai; Maderych Stan; Jeff Irwin; Hiroki Kawakami; Pouria Zangi; Pascal Meyer; Martin Börner; Joachim Schulz

doi:10.1117/12.2636393

14 October 2022 Recent progress in grating-based microscopic x-ray phase tomography

Atsushi Momose, Ryosuke Ueda, Mingjian Cai, Zhuoxuan Zhao, Sam Kalirai, Maderych Stan, Jeff Irwin, Hiroki Kawakami, Pouria Zangi, Pascal Meyer, Martin Börner, Joachim Schulz

Author Affiliations +

Proceedings Volume 12242, Developments in X-Ray Tomography XIV; 1224210 (2022) https://doi.org/10.1117/12.2636393
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

X-ray phase imaging with grating interferometers, such as the Talbot interferometer, is widely performed even with a laboratory X-ray source. However, the achievable spatial resolution is normally limited by the period of gratings. In this work, two laboratory-based apparatuses are developed to overcome the constraint of the spatial resolution. One is the combination of a commercially available FZP-based X-ray imaging microscope and Lau interferometer optics. The two-step deconvolution approach is explained to attain phase tomography. The other is a sub-period super-resolution X-ray phase imaging, which is based on the sample-scanning scheme across the beamlet array formed by a triangular phase grating. A proof-of-concept result of the super-resolution approach is presented.

Conference Presentation

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Atsushi Momose, Ryosuke Ueda, Mingjian Cai, Zhuoxuan Zhao, Sam Kalirai, Maderych Stan, Jeff Irwin, Hiroki Kawakami, Pouria Zangi, Pascal Meyer, Martin Börner, and Joachim Schulz "Recent progress in grating-based microscopic x-ray phase tomography", Proc. SPIE 12242, Developments in X-Ray Tomography XIV, 1224210 (14 October 2022); https://doi.org/10.1117/12.2636393

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