Non-uniformity correction for MARS photon-counting detectors

Matthew Getzin; Mengzhou Li; David S. Rundle; Anthony P. Butler; Ge Wang

doi:10.1117/12.2534914

28 May 2019 Non-uniformity correction for MARS photon-counting detectors

Matthew Getzin, Mengzhou Li, David S. Rundle, Anthony P. Butler, Ge Wang

Proceedings Volume 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine; 110722W (2019) https://doi.org/10.1117/12.2534914
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019, Philadelphia, United States

Abstract

X-ray photon-counting detectors (PCDs) become increasingly popular with applications in medical imaging, material science, and other areas. In this paper, we propose a non-uniformity data correction method for photon-counting detectors based on the first and second moment correction. Using three measure datasets, we demonstrate the method’s efficacy in reducing spatial variance of pixel counts. The results demonstrate that both open beam and projection data can be corrected to nearly perfect Poisson counting behavior in both time and space when photon flux is in the detector’s linear response range.

Citation Download Citation

Matthew Getzin, Mengzhou Li, David S. Rundle, Anthony P. Butler, and Ge Wang "Non-uniformity correction for MARS photon-counting detectors ", Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110722W (28 May 2019); https://doi.org/10.1117/12.2534914

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