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Proceedings Paper

Transport properties and spectrometric performances of CdZnTe gamma-ray detectors
Author(s): Alexandr A. Zakharchenko; Alexandr V Rybka; Vladimir E. Kutny; Anna I. Skrypnyk; Manap A. Khazhmuradov; Petro M. Fochuk; Aleksey E. Bolotnikov; Ralph B. James
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Paper Abstract

We investigated the influence of the ratio of the electron and hole mobility-lifetime products, (μτ)e,h and (μτ)e/(μτ)h, on the resolution of CdZnTe planar radiation detectors via Monte-Carlo simulations. Preliminary results show that this ratio exercises a larger effect than that of any other parameter on the detector’s peak-to-valley ratio and resolution. We determined the range of values of the ratio (μt)e/(μτ)h where the fast degeneration of the photopeak in CdZnTe detectors takes place at a gamma-ray energy 661.7 keV (137Cs). We offer an explanation, based on the results of some of our experimental data, on the spectrometric performance of CdZnTe detectors.

Paper Details

Date Published: 24 October 2012
PDF: 7 pages
Proc. SPIE 8507, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIV, 85071I (24 October 2012); doi: 10.1117/12.928567
Show Author Affiliations
Alexandr A. Zakharchenko, National Science Ctr. Kharkov Institute of Physics and Technology (Ukraine)
Alexandr V Rybka, National Science Ctr. Kharkov Institute of Physics and Technology (Ukraine)
Vladimir E. Kutny, National Science Ctr. Kharkov Institute of Physics and Technology (Ukraine)
Anna I. Skrypnyk, National Science Ctr. Kharkov Institute of Physics and Technology (Ukraine)
Manap A. Khazhmuradov, National Science Ctr. Kharkov Institute of Physics and Technology (Ukraine)
Petro M. Fochuk, Chernivtsi National Univ. (Ukraine)
Aleksey E. Bolotnikov, Brookhaven National Lab. (United States)
Ralph B. James, Brookhaven National Lab. (United States)


Published in SPIE Proceedings Vol. 8507:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIV
Ralph B. James; Arnold Burger; Larry A. Franks; Michael Fiederle, Editor(s)

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