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Proceedings Paper

Modeling and experimental results of CdxZn1-xTe detector response
Author(s): Michael Watson; Kaushik Chattopadhyay; Damian Hillman; Damon Hillman; Arnold Burger; Ralph B. James
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Paper Abstract

We have developed a model of the statistical variations in the electrical charge transport in CdxZn1-xTe(CZT) detectors. The model includes a simulation of the charge carrier generation for each photon interaction, using a calculated absorption coefficient of the photoelectric absorption. Next, we simulate the induced signal as carriers drift towards the collecting electrode under trapping conditions with negligible detrapping. Finally, a pulse height histogram is composed simulating the spectral response of the detector and incorporating the electronic noise component. A comparison between experimental and calculated CZT spectra was performed. These results and the potential for using the model in detector design will be discussed and presented.

Paper Details

Date Published: 21 November 2000
PDF: 5 pages
Proc. SPIE 4141, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II, (21 November 2000); doi: 10.1117/12.407598
Show Author Affiliations
Michael Watson, Fisk Univ. (United States)
Kaushik Chattopadhyay, Fisk Univ. (United States)
Damian Hillman, Fisk Univ. (United States)
Damon Hillman, Fisk Univ. (United States)
Arnold Burger, Fisk Univ. (United States)
Ralph B. James, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 4141:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics II
Ralph B. James; Richard C. Schirato, Editor(s)

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