Charge sharing correction for photon counting detectors with coincidence counters

Katsuyuki Taguchi; Scott S. Hsieh

doi:10.1117/12.2654389

7 April 2023 Charge sharing correction for photon counting detectors with coincidence counters

Katsuyuki Taguchi, Scott S. Hsieh

Author Affiliations +

Proceedings Volume 12463, Medical Imaging 2023: Physics of Medical Imaging; 124630F (2023) https://doi.org/10.1117/12.2654389
Event: SPIE Medical Imaging, 2023, San Diego, California, United States

Abstract

One of the challenges for photon counting detector (PCD)-based computed tomography (CT) is spectral distortion due to charge sharing (CS). We recently proposed multi-energy inter-pixel coincidence counter (MEICC), which uses energy-dependent coincidence counters (CCs) between each PCD pixel and its neighboring pixels and records coincident events via charge sharing during data acquisition. Previous studies have shown that the performance of MEICC is as good as other technologies including digital count summing (DCS) scheme. In this study, we develop an algorithm that uses MEICC PCD output to create CS-corrected data. The performance of the method is assessed using a Monte Carlo (MC) simulation.

Conference Presentation

Citation Download Citation

Katsuyuki Taguchi and Scott S. Hsieh "Charge sharing correction for photon counting detectors with coincidence counters", Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 124630F (7 April 2023); https://doi.org/10.1117/12.2654389

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