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Proceedings Paper

The energy dependence of the sensitivity for planar CdZnTe gamma-ray detectors
Author(s): Alexandr A. Zakharchenko; Anna I. Skrypnyk; Manap A. Khazhmuradov; Alexandr V. Rybka; Vladimir E. Kutny; Petro M. Fochuk; Valery M. Sklyarchuk; A. E. Bolotnikov; R. B. James
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Paper Abstract

Considerable variations in the charge-carrier transport parameters necessitate individual calibration of CdZnTe gammaray detectors for many applications. We carried out a set of experiments wherein we determined that the main region of interest for the energy dependence of CdZnTe-detectors’ sensitivity lay in the gamma-quantum energy range of 0.03- to 3-MeV. This finding was satisfactorily verified and reconstructed from our measurements of pulse-height distributions using 241Am-, 137Cs-, and 60Co-sources. We discuss our comparison of the quality-of-fit of the approximation formulae with our detailed calculations of the sensitivity of CdZnTe detectors via a Monte-Carlo method.

Paper Details

Date Published: 26 September 2013
PDF: 12 pages
Proc. SPIE 8852, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV, 88521B (26 September 2013); doi: 10.1117/12.2022593
Show Author Affiliations
Alexandr A. Zakharchenko, Kharkov Institute of Physics and Technology (Ukraine)
Anna I. Skrypnyk, Kharkov Institute of Physics and Technology (Ukraine)
Manap A. Khazhmuradov, Kharkov Institute of Physics and Technology (Ukraine)
Alexandr V. Rybka, Kharkov Institute of Physics and Technology (Ukraine)
Vladimir E. Kutny, Kharkov Institute of Physics and Technology (Ukraine)
Petro M. Fochuk, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)
Valery M. Sklyarchuk, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)
A. E. Bolotnikov, Brookhaven National Lab. (United States)
R. B. James, Brookhaven National Lab. (United States)


Published in SPIE Proceedings Vol. 8852:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV
Michael Fiederle; Arnold Burger; Larry Franks; Ralph B. James, Editor(s)

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