Egarievwe, S.U., Roy, U.N., Goree, C.A., Harrison, B.A., Jones, J. and James, R.B. (2019) Ammonium Fluoride Passivation of CdZnTeSe Sensors for Applications in Nuclear Detection and Medical Imaging. Sensors, 19, 3271.
https://doi.org/10.3390/s19153271

has been cited by the following article:

• TITLE: Study of CdZnTeSe Gamma-Ray Detector under Various Bias Voltages

  AUTHORS: Mebougna L. Drabo, Stephen U. Egarievwe, Utpal N. Roy, Benicia A. Harrison, Carmella A. Goree, Emmanuel K. Savage, Ralph B. James

  KEYWORDS: CdZnTeSe, Energy Resolution, Energy-Peak Stability, Gamma-Ray Spectroscopy, Nuclear Detectors

  JOURNAL NAME: Materials Sciences and Applications, Vol.11 No.8, August 5, 2020

  ABSTRACT: Cadmium zinc telluride selenide (CdZnTeSe) is a new semiconductor material for gamma-ray detection and spectroscopy applications at room temperature. It has very high crystal quality compared to similar materials such as cadmium telluride and cadmium zinc telluride. The consistency of peak position in radiation detection devices is important to practical applications. In this paper, we have characterized a CdZnTeSe planar detector for bias voltages in the range of -20 V to -200 V and amplifier shaping time of 2, 3 and 6 μs. The peak position of the 59.6-keV gamma line of 241Am becomes more stable as the absolute value of the applied voltage increases. The best energy resolution of 8.5% was obtained for the 59.6-keV gamma peak at -160 V bias voltage and 3-μs shaping time. The energy resolution was relatively stable in the -120 V to -200 V range for a 6-μs shaping time. Future work will be focused on the study of the peak position and energy resolution over time.