Phantom measurements with a mesh-based phase system employing polycapillary optics

Uttam Pyakurel; Desirée D'Moore; Pikting Cheung; Bushra Kanwal; Xiaoyun Zhang; C. A. MacDonald; Jonathan C. Petruccelli

doi:10.1117/12.2549359

16 March 2020 Phantom measurements with a mesh-based phase system employing polycapillary optics

Uttam Pyakurel, Desirée D'Moore, Pikting Cheung, Bushra Kanwal, Xiaoyun Zhang, C. A. MacDonald, Jonathan C. Petruccelli

Proceedings Volume 11312, Medical Imaging 2020: Physics of Medical Imaging; 1131255 (2020) https://doi.org/10.1117/12.2549359
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

Abstract

X-ray phase imaging has found limited clinical use due to requirements on x-ray coherence that may not be easily translated to clinical practice. Instead, this work employs a conventional source to create structured illumination with a simple wire mesh. A mesh-shifting algorithm that incorporates deconvolution of the source spot width is used to enhance resolution. Polycapillary optics are employed to enhance coherence. The effects of incorporating optics with two different focal lengths are compared. Measurements of fat embedded artificial tumors have been performed.

Citation Download Citation

Uttam Pyakurel, Desirée D'Moore, Pikting Cheung, Bushra Kanwal, Xiaoyun Zhang, C. A. MacDonald, and Jonathan C. Petruccelli "Phantom measurements with a mesh-based phase system employing polycapillary optics", Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 1131255 (16 March 2020); https://doi.org/10.1117/12.2549359

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