NDLI: Edge effects in pixelated CdZnTe gamma detectors

Content Provider	IEEE Xplore Digital Library
Author	Shor, A. Eisen, Y. Mardor, I.
Copyright Year	2004
Description	Author affiliation: Soreq Nucl. Res. Center, Yavne'el, Israel (Shor, A.; Eisen, Y.; Mardor, I.)
Abstract	Edge effects in pixelated CdZnTe detectors are a result of the high dielectric constant of the CdZnTe detector material, and the tendency of the field lines emanating from the "hole" charge carriers to remain within the detector volume. As a result spectra for edge and corner pixels tend to exhibit a longer low energy tail at the expense of the number of events in the photo-peak. We focus on a thick pixelated CdZnTe detector, where, the detector thickness is comparable to the lateral size. We develop a theoretical Monte-Carlo simulation that well describes the experimentally observed edge effects. We show that when the same detector is embedded in an array of similar detector at the same HV, the edge effects disappear, and the spectral properties of even the central pixels improve noticeably.
Starting Page	3342
Ending Page	3345
File Size	735520
Page Count	4
File Format	PDF
ISBN	0780382579
ISSN	10823654
DOI	10.1109/NSSMIC.2003.1352622
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gamma ray detection Gamma ray detectors Telephony Charge carriers Tail Electrodes High-K gate dielectrics Dielectric materials Sensor arrays Signal processing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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