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Title: Use of high-granularity position sensing to correct response non-uniformities of CdZnTe detectors

CdZnTe (CZT) is a promising medium for room-temperature gamma-ray detectors. However, the low production yield of acceptable quality crystals hampers the use of CZT detectors for gamma-ray spectroscopy. Significant efforts have been directed towards improving quality of CZT crystals to make them generally available for radiation detectors. Another way to address this problem is to implement detector designs that would allow for more accurate and predictable correction of the charge loss associated with crystal defects. In this work, we demonstrate that high-granularity position-sensitive detectors can significantly improve the performance of CZT detectors fabricated from CZT crystals with wider acceptance boundaries, leading to an increase of their availability and expected decrease in cost.
Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1] ;  [2] ;  [3]
  1. Department of Non-proliferation and National Security, Brookhaven National Laboratory, Upton, New York 11793-5000 (United States)
  2. Korea University, 161 Jeongneung-ro, Seongbuk-gu, Seoul, 136-855 (Korea, Republic of)
  3. State University of New York at Binghamton, Binghamton, New York 13902 (United States)
Publication Date:
OSTI Identifier:
22303909
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 26; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CADMIUM COMPOUNDS; CORRECTIONS; CRYSTAL DEFECTS; CRYSTALS; GAMMA DETECTION; GAMMA RADIATION; GAMMA SPECTROSCOPY; LOSSES; PERFORMANCE; RADIATION DETECTORS; TELLURIUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K; ZINC COMPOUNDS