The energy dependence of the sensitivity for planar CdZnTe gamma-ray detectors

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

doi:10.1117/12.2022593

26 September 2013 The energy dependence of the sensitivity for planar CdZnTe gamma-ray detectors

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

Author Affiliations +

Proceedings Volume 8852, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV; 88521B (2013) https://doi.org/10.1117/12.2022593
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

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.

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Alexandr A. Zakharchenko, Anna I. Skrypnyk, Manap A. Khazhmuradov, Alexandr V. Rybka, Vladimir E. Kutny, Petro M. Fochuk, Valery M. Sklyarchuk, A. E. Bolotnikov, and R. B. James "The energy dependence of the sensitivity for planar CdZnTe gamma-ray detectors", Proc. SPIE 8852, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV, 88521B (26 September 2013); https://doi.org/10.1117/12.2022593

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