Initial investigation of mesh-based x-ray phase tomography

Wadiah H. Allahyani; Uttam Pyakurel; Arthur Redgate; Carolyn A. MacDonald; Jonathan C. Petruccelli

doi:10.1117/12.2665371

13 June 2023 Initial investigation of mesh-based x-ray phase tomography

Wadiah H. Allahyani, Uttam Pyakurel, Arthur Redgate, Carolyn A. MacDonald, Jonathan C. Petruccelli

Proceedings Volume 12523, Computational Imaging VII ; 125230C (2023) https://doi.org/10.1117/12.2665371
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

X-ray phase and dark field imaging offer two additional channels of information to enhance image contrast as well as providing information on material micro-texture that is unavailable to conventional x-ray imaging. These signals are commonly acquired by using multiple precisely aligned, fine-pitched gratings to both pattern the beam and to detect subtle shifts and blurring in this pattern. We instead use a single, low-cost, easily-aligned, coarse-pitched mesh to produce a pattern that is imaged directly to produce phase and dark field computed tomography (CT) images. We demonstrate phase and CT reconstructions using our system for a variety of phantoms.

Conference Presentation

Citation Download Citation

Wadiah H. Allahyani, Uttam Pyakurel, Arthur Redgate, Carolyn A. MacDonald, and Jonathan C. Petruccelli "Initial investigation of mesh-based x-ray phase tomography", Proc. SPIE 12523, Computational Imaging VII , 125230C (13 June 2023); https://doi.org/10.1117/12.2665371

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