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X-Ray Computed Tomography using Partially Coherent Fresnel Diffraction with Application to an Optical Fiber

Published

Author(s)

Zachary H. Levine, Edward Garboczi, Adele Peskin, Axel A. Ekman, Elisabeth Mansfield, Jason Holm

Abstract

An algorithm for partially coherent x-ray computed tomography including Fresnel diffraction is developed and applied to an optical fiber. The computing time is a few times worse than the projective counterpart. A code using the algorithm is used to reconstruct a tilt series acquired at the 1$\mu$m scale of a graded-index optical fiber with projections and diffraction, and using maximum likelihood and a Bayesian method due to Bouman and Sauer. Including Fresnel diffraction removes some reconstruction artifacts. The use of the Bayesian prior removes others.
Citation
Optics Express
Volume
29
Issue
2

Keywords

optical fiber , diffraction tomography , iterative reconstruction , maximum likelihood , Bayesian

Citation

Levine, Z. , Garboczi, E. , Peskin, A. , Ekman, A. , Mansfield, E. and Holm, J. (2021), X-Ray Computed Tomography using Partially Coherent Fresnel Diffraction with Application to an Optical Fiber, Optics Express, [online], https://doi.org/10.1364/OE.414398 (Accessed April 15, 2021)
Created January 17, 2021, Updated January 11, 2021