Single-step, quantitative x-ray differential phase contrast imaging using spectral detection in a coded aperture setup

Mini Das; Zhihua Liang

doi:10.1117/12.2082977

18 March 2015 Single-step, quantitative x-ray differential phase contrast imaging using spectral detection in a coded aperture setup

Mini Das, Zhihua Liang

Author Affiliations +

Proceedings Volume 9412, Medical Imaging 2015: Physics of Medical Imaging; 941252 (2015) https://doi.org/10.1117/12.2082977
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

In this abstract we describe the first non-interferometric x-ray phase contrast imaging (PCI) method that uses only a single-measurement step to retrieve with quantitative accuracy absorption, phase and differential phase. Our approach is based on utilizing spectral information from photon counting spectral detectors in conjunction with a coded aperture PCI setting to simplify the x-ray “phase problem” to a one-step method. The method by virtue of being single-step with no motion of any component for a given projection image has significantly high potential to overcome the barriers currently faced by PCI.

Citation Download Citation

Mini Das and Zhihua Liang "Single-step, quantitative x-ray differential phase contrast imaging using spectral detection in a coded aperture setup", Proc. SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging, 941252 (18 March 2015); https://doi.org/10.1117/12.2082977

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