The study of response of wide band gap semiconductor detectors using the Geant4

Nuclear Technology and Radiation Protection. 2014;29(3):242-248 DOI 10.2298/NTRP1403242H

 

Journal Homepage

Journal Title: Nuclear Technology and Radiation Protection

ISSN: 1451-3994 (Print); 1452-8185 (Online)

Publisher: VINCA Institute of Nuclear Sciences

LCC Subject Category: Technology: Electrical engineering. Electronics. Nuclear engineering | Science: Physics: Nuclear and particle physics. Atomic energy. Radioactivity

Country of publisher: Serbia

Language of fulltext: English

Full-text formats available: PDF

 

AUTHORS

Hussain Riaz (Pakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, Pakistan)
Mirza Sikander M. (Pakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, Pakistan)
Mirza Nasir M. (Pakistan Institute of Engineering & Applied Sciences, Department of Physics & Applied Mathematics, Nilore, Islamabad, Pakistan)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 36 weeks

 

Abstract | Full Text

The energy dependence on the intrinsic efficiency, absolute efficiency, full energy peak absolute efficiency and peak-to-total ratio have been studied for various wide band gap semiconductor detectors using the Geant4 based Monte Carlo simulations. The detector thickness of 1-4 mm and the area in 16-100 mm2 range were considered in this work. In excellent agreement with earlier work (Rybka et al., [20]), the Geant4 simulated values of detector efficiencies have been found to decrease with incident g-ray energy. Both for the detector thickness and the detector area, the increasing trends have been observed for total efficiency as well as for full-energy peak efficiency in 0.1 MeV-50 MeV range. For Cd1-xZnxTe, the detector response remained insensitive to changes in relative proportions of Zn. For various wide band gap detectors studied in this work, the detection efficiency of TlBr was found highest over the entire range of energy, followed by the HgI2, CdTe, and then by CZT.