期刊
HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS IX
卷 6706, 期 -, 页码 -出版社
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.736654
关键词
CdZnTe; gamma ray detectors; Frisch-grid
资金
- U.S. Department of Energy, Office of Nonproliferation Research and Development [NA-22]
- U.S. Department of Energy [DE-AC02-98CH1-886]
In the past, various virtual Frisch-grid designs have been proposed for cadmium zinc telluride (CZT) and other Compound semiconductor detectors. These include three-terminal, semi-spherical, CAPture, Frisch-ring, capacitive Frisch-grid and pixel devices (along with their modifications). Among them, the Frisch-grid clesign employing a non-contacting ring extended over the entire side surfaces of parallelepiped-shaped CZT crystals is the most promising. The defect-free parallelepiped-shaped crystals with typical dimensions of 5x5x12 mm(3) are easy to produce and can be arranged into large arrays used for imaging and gamma-ray spectroscopy. In this paper, we report on further advances of the virtual Frisch-grid detector design for the parallelepiped-shaped CZT crystals. Both the experimental testing and modelling results are described.
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