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Proceedings Paper

Characterization of a 15-mm-long virtual Frisch-grid CZT detector array
Author(s): A. E. Bolotnikov; S. Babalola; G. S. Camarda; Y. Cui; S. U. Egarievwe; P. M. Fochuk; M. Hirt; A. Hossain; K. Kim; O. V. Kopach; N. D. Sferrazza; J. Sturgess; K. Polack; B. Raghothamachar; G. Yang; R. B. James
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Paper Abstract

We detail our new results from testing an array of 15-mm long virtual Frisch-grid CdZnTe detectors with a cathode signal readout-scheme intended to improve spectral response by correcting for electron trapping. We designed a novel electrode configuration for these long-drift detectors that ensures an energy resolution close to the statistical limit, and high detection efficiency. However, in reality, the quality of the crystals limits the performance of this type of device. Here, we describe the characterization of the array, show our preliminary results obtained with gamma-ray sources, and expound on their relation to our material-characterization data.

Paper Details

Date Published: 11 September 2009
PDF: 11 pages
Proc. SPIE 7449, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI, 744909 (11 September 2009); doi: 10.1117/12.826900
Show Author Affiliations
A. E. Bolotnikov, Brookhaven National Lab. (United States)
S. Babalola, Fisk Univ. (United States)
Vanderbilt Univ. (United States)
G. S. Camarda, Brookhaven National Lab. (United States)
Y. Cui, Brookhaven National Lab. (United States)
S. U. Egarievwe, Fisk Univ. (United States)
P. M. Fochuk, Chernivtsi National Univ. (Ukraine)
M. Hirt, Univ. of Michigan (United States)
A. Hossain, Brookhaven National Lab. (United States)
K. Kim, Brookhaven National Lab. (United States)
O. V. Kopach, Chernivtsi National Univ. (Ukraine)
N. D. Sferrazza, Brookhaven National Lab. (United States)
J. Sturgess, Vanderbilt Univ. (United States)
K. Polack, Univ. of Michigan (United States)
B. Raghothamachar, Stony Brook Univ. (United States)
G. Yang, Brookhaven National Lab. (United States)
R. B. James, Brookhaven National Lab. (United States)

Published in SPIE Proceedings Vol. 7449:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
Ralph B. James; Larry A. Franks; Arnold Burger, Editor(s)

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