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arXiv · 1312.6766

Charge Sharing Effect on 600 {\mu}m Pitch Pixelated CZT Detector for Imaging Applications

Yongzhi Yin·Qi Liu·Dapeng Xu·Ximeng Chen
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Abstract

We are currently investigating the spatial resolution of highly pixelated Cadmium Zinc Telluride (CZT) detector for imaging applications. A 20 mm {\times} 20 mm {\times} 5 mm CZT substrate was fabricated with 600 {\mu}m pitch pixels (500 {\mu}m anode pixels with 100 {\mu}m gap) and coplanar cathode. Charge sharing between two pixels was studied using collimated 122 keV gamma ray source. Experiments show a resolution of 125 {\mu}m FWHM for double-pixel charge sharing events when the 600 {\mu}m pixelated and 5 mm thick CZT detector biased at -1000 V. In addition, we analyzed the energy response of the 600 {\mu}m pitch pixelated CZT detector.

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Yongzhi Yin, Qi Liu, Dapeng Xu, Ximeng Chen. 2013-12-24. Charge Sharing Effect on 600 {\mu}m Pitch Pixelated CZT Detector for Imaging Applications. https://doi.org/10.1109/tns.2012.2213611

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