Development of simulations for a mesh-based x-ray phase imaging system

Laila Hassan; Uttam Pyakurel; Weiyuan Sun; Carolyn A. MacDonald; Jonathan C. Petruccelli

doi:10.1117/12.2558926

19 May 2020 Development of simulations for a mesh-based x-ray phase imaging system

Laila Hassan, Uttam Pyakurel, Weiyuan Sun, Carolyn A. MacDonald, Jonathan C. Petruccelli

Proceedings Volume 11396, Computational Imaging V; 113960E (2020) https://doi.org/10.1117/12.2558926
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

X-ray images of low-density materials, such as soft tissue, provide inherently low contrast due to their subtle attenuation differences. However, differences in phase imparted to x rays can be substantial, giving significantly improved contrast. The barrier to widespread implementation of x-ray phase imaging is that most phase techniques require high spatial coherence of the x-ray beam. We have previously demonstrated that employing structured illumination produced by a stainless steel wire mesh can significantly loosen this coherence requirement. We present a computational model utilizing ray tracing that allows us to explore its design space and to optimize our phase reconstruction algorithms.

Citation Download Citation

Laila Hassan, Uttam Pyakurel, Weiyuan Sun, Carolyn A. MacDonald, and Jonathan C. Petruccelli "Development of simulations for a mesh-based x-ray phase imaging system", Proc. SPIE 11396, Computational Imaging V, 113960E (19 May 2020); https://doi.org/10.1117/12.2558926

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