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15 September 2017 Effect of cathode energy spectrum on the depth of interaction estimation and anode signal recovery in CZT detectors
Mohan Li, Shiva Abbaszadeh
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Proceedings Volume 10392, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX; 1039217 (2017) https://doi.org/10.1117/12.2275674
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States
Abstract
One electrode configuration frequently used in CZT detectors is the cross-strip pattern. The cathode-to-anode signal ratio (C/A) can be used to estimate the position of photon interaction in the direction perpendicular to the electrode plane. In addition, C/A is used to calibrate for the depth-dependent anode signal. Based on the design configuration of the electrode widths with respect to the CZT thickness, their measured energy spectrum varies due to the small pixel effect and charge trapping. In this work we evaluate the effect of a poor cathode energy resolution on the depth of interaction correction and anode signal recovery.
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Mohan Li and Shiva Abbaszadeh "Effect of cathode energy spectrum on the depth of interaction estimation and anode signal recovery in CZT detectors", Proc. SPIE 10392, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX, 1039217 (15 September 2017); https://doi.org/10.1117/12.2275674
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KEYWORDS
Calibration
Electrodes
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