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Proceedings Paper

Development of large-volume high-performance monolithic CZT radiation detector
Author(s): Henry Chen; Handong Li; Michael D. Reed; Arun G. Sundaram; John Eger; James W. Hugg; Shiva Abbaszadeh; Mohan Li; Guillaume Montemont; Loick Verger; Yuefeng Zhu; Zhong He
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Paper Abstract

Recent progress with Cadmium Zinc Telluride (CZT) radiation sensors grown by the traveling heater method (THM) at Kromek is reported. Large volume monolithic pixelated detectors, 40×40×15 mm3 have been fabricated with good initial gamma spectroscopy response (< 2.5% energy resolution at 662 keV at room temperature without correction). After depth of interaction (DOI) correction, detector performance with < 1% energy resolution at 662 keV at room temperature has been obtained on pixelated 22×22×15 mm3 CZT detector. For medical imaging applications, 20×20×6 mm3 pixelated detectors exhibits < 3% energy resolution at 122 keV without correction. These results have been achieved via our proprietary THM crystal growth in combination with our robust device fabrication technique. Examples of progress in other areas of CZT development for gamma spectroscopy and imaging applications such as 40×40×5 mm3 cross-strip device for PET and Kromek’s general-purpose SPECT camera will also be presented.

Paper Details

Date Published: 13 September 2018
PDF: 19 pages
Proc. SPIE 10762, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XX, 107620N (13 September 2018); doi: 10.1117/12.2321244
Show Author Affiliations
Henry Chen, Kromek (United States)
Handong Li, Kromek (United States)
Michael D. Reed, Kromek (United States)
Arun G. Sundaram, Kromek (United States)
John Eger, Kromek (United States)
James W. Hugg, Kromek (United States)
Shiva Abbaszadeh, Univ. of Illinois at Urbana-Champain (United States)
Mohan Li, Univ. of Illinois at Urbana-Champain (United States)
Guillaume Montemont, CEA-LETI (France)
Loick Verger, CEA-LETI (France)
Yuefeng Zhu, Univ. of Michigan (United States)
Zhong He, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 10762:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XX
Stephen A. Payne; Ralph B. James; Arnold Burger; Michael Fiederle, Editor(s)

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