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Title: CdZnTe position-sensitive drift detectors with thicknesses up to 5 cm

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4943161· OSTI ID:22591769
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  1. Department of Nonproliferation and National Security, Brookhaven National Laboratory, Upton, New York 11793-5000 (United States)
  2. Redlen Technologies, Saanichton, British Columbia V8M 0A5 (Canada)
  3. Department of Applied Physics, NYU School of Engineering, Brooklyn, New York 11201 (United States)
  4. Department of Physics, Ohio State University, Columbus, Ohio 43201 (United States)
  5. Institute of Physics of Charles University, Prague 12116 (Czech Republic)
  6. Department of Mechanical and Nuclear Engineering, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
  7. Department of Physics, University of Surrey, Surrey GU2 7XH (United Kingdom)

We investigated the feasibility of long-drift-time CdZnTe (CZT) gamma-ray detectors, fabricated from CZT material produced by Redlen Technologies. CZT crystals with cross-section areas of 5 × 5 mm{sup 2} and 6 × 6 mm{sup 2} and thicknesses of 20-, 30-, 40-, and 50-mm were configured as 3D position-sensitive drift detectors and were read out using a front-end ASIC. By correcting the electron charge losses caused by defects in the crystals, we demonstrated high performance for relatively thick detectors fabricated from unselected CZT material.

OSTI ID:
22591769
Journal Information:
Applied Physics Letters, Vol. 108, Issue 9; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English