Characterization of a 15-mm-long virtual Frisch-grid CZT detector array

A. E. Bolotnikov, S. Babalola, G. S. Camarda, Y. Cui, S. U. Egarievwe, P. M. Fochuk, M. Hirt, A. M. Hossain, K. Kim, O. V. Kopach, N. D. Sferraza, J. Sturgess, K. Polack, B. Raghothamachar, G. Yang, R. B. James

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


We detail our new results from testing an array of 15-mm long virtual Frisch-grid CdZnTe detectors with a cathode signal readout-scheme intended to improve spectral response by correcting for electron trapping. We designed a novel electrode configuration for these long-drift detectors that ensures an energy resolution close to the statistical limit, and high detection efficiency. However, in reality, the quality of the crystals limits the performance of this type of device. Here, we describe the characterization of the array, show our preliminary results obtained with gamma-ray sources, and expound on their relation to our material-characterization data.

Original languageEnglish
Title of host publicationHard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
Publication statusPublished - 2009
Externally publishedYes
EventHard X-Ray, Gamma-Ray, and Neutron Detector Physics XI - San Diego, CA, United States
Duration: 2009 Aug 32009 Aug 6

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceHard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
Country/TerritoryUnited States
CitySan Diego, CA


  • CdZnTe
  • Frisch-grid
  • Gamma-ray detectors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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