NDLI: Thickness scalability of large volume Cadmium Zinc Telluride high resolution radiation detectors

Content Provider	IEEE Xplore Digital Library
Author	Awadalla, S. A. Chen, H. Mackenzie, J. Lu, P. Iniewski, K. Marthandam, P. Redden, R. Bindley, G. He, Z. Zhang, F. Groza, M. Burger, A. Mayo, D. R. Sullivan, C. L.
Copyright Year	2008
Description	Author affiliation: Redlen Technologies, Sidney, BC V8L 5Y8 Canada (Awadalla, S. A.; Chen, H.; Mackenzie, J.; Lu, P.; Iniewski, K.; Marthandam, P.; Redden, R.; Bindley, G.) \|\| Los Alamos National Laboratory, NM 87545, USA (Mayo, D. R.; Sullivan, C. L.) \|\| Fisk University, Nashville, TN 37208 USA (Groza, M.; Burger, A.) \|\| University of Michigan, Ann Arbor, 48109 USA (He, Z.; Zhang, F.)
Abstract	In an effort to optimize the spectroscopic performance of large volume Cadmium Zinc Telluride (CZT) radiation detectors grown by the Traveling Heater Method (THM), especially for higher energy gamma detection applications, bulk material and pixellated detector performance of THM CZT crystals at 15mm-thick and 10mm-thick were compared to that at 5mm-thick. We demonstrate that the outstanding performance of monolithic pixellated THM CZT detectors was thickness-scalable. For the same monolithic 20×20 $mm^{2}$ “Compton Camera” pixellated detector configuration, detector performance can certainly be significantly improved as the thickness of the detector increases from 5mm to 10mm and thicker as demonstrated via both $^{57}Co$ 122 keV and $^{137}Cs$ 662 keV spectral responses. Depth of interaction information obtained from 3D depth sensing measurement system, IR microscopy and x-ray topography were used to study the correlation between structural quality and detector performance. Additional material characterizations and detector performances of various sizes and configurations were also presented and discussed.
Starting Page	58
Ending Page	62
File Size	4678968
Page Count	5
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4775126
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scalability Cadmium compounds Zinc compounds Radiation detectors Gas detectors Gamma ray detection Gamma ray detectors Energy resolution Optimization methods Spectroscopy
Content Type	Text
Resource Type	Article

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