Characterization of a 15-mm-long virtual Frisch-grid CZT detector array

A. E. Bolotnikov; S. Babalola; G. S. Camarda; Y. Cui; S. U. Egarievwe; P. M. Fochuk; M. Hirt; A. M. Hossain; Kihyun Kim; O. V. Kopach; N. D. Sferraza; J. Sturgess; K. Polack; B. Raghothamachar; G. Yang; R. B. James

doi:10.1117/12.826900

Characterization of a 15-mm-long virtual Frisch-grid CZT detector array

A. E. Bolotnikov, S. Babalola, G. S. Camarda, Y. Cui, S. U. Egarievwe, P. M. Fochuk, M. Hirt, A. M. Hossain, Kihyun Kim, O. V. Kopach, N. D. Sferraza, J. Sturgess, K. Polack, B. Raghothamachar, G. Yang, R. B. James

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

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.

Original language	English
Title of host publication	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
DOIs	https://doi.org/10.1117/12.826900
Publication status	Published - 2009 Dec 11
Externally published	Yes
Event	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI - San Diego, CA, United States Duration: 2009 Aug 3 → 2009 Aug 6

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7449
ISSN (Print)	0277-786X

Conference

Conference	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
Country	United States
City	San Diego, CA
Period	09/8/3 → 09/8/6

Keywords

CdZnTe
Frisch-grid
Gamma-ray detectors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.826900

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Bolotnikov, A. E., Babalola, S., Camarda, G. S., Cui, Y., Egarievwe, S. U., Fochuk, P. M., Hirt, M., Hossain, A. M., Kim, K., Kopach, O. V., Sferraza, N. D., Sturgess, J., Polack, K., Raghothamachar, B., Yang, G., & James, R. B. (2009). Characterization of a 15-mm-long virtual Frisch-grid CZT detector array. In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI [744909] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7449). https://doi.org/10.1117/12.826900

Characterization of a 15-mm-long virtual Frisch-grid CZT detector array. / Bolotnikov, A. E.; Babalola, S.; Camarda, G. S.; Cui, Y.; Egarievwe, S. U.; Fochuk, P. M.; Hirt, M.; Hossain, A. M.; Kim, Kihyun; Kopach, O. V.; Sferraza, N. D.; Sturgess, J.; Polack, K.; Raghothamachar, B.; Yang, G.; James, R. B.

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI. 2009. 744909 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7449).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bolotnikov, AE, Babalola, S, Camarda, GS, Cui, Y, Egarievwe, SU, Fochuk, PM, Hirt, M, Hossain, AM, Kim, K, Kopach, OV, Sferraza, ND, Sturgess, J, Polack, K, Raghothamachar, B, Yang, G & James, RB 2009, Characterization of a 15-mm-long virtual Frisch-grid CZT detector array. in Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI., 744909, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7449, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI, San Diego, CA, United States, 09/8/3. https://doi.org/10.1117/12.826900

Bolotnikov, A. E. ; Babalola, S. ; Camarda, G. S. ; Cui, Y. ; Egarievwe, S. U. ; Fochuk, P. M. ; Hirt, M. ; Hossain, A. M. ; Kim, Kihyun ; Kopach, O. V. ; Sferraza, N. D. ; Sturgess, J. ; Polack, K. ; Raghothamachar, B. ; Yang, G. ; James, R. B. / Characterization of a 15-mm-long virtual Frisch-grid CZT detector array. Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI. 2009. (Proceedings of SPIE - The International Society for Optical Engineering).

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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.",

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AU - Bolotnikov, A. E.

AU - Babalola, S.

AU - Camarda, G. S.

AU - Cui, Y.

AU - Egarievwe, S. U.

AU - Fochuk, P. M.

AU - Hirt, M.

AU - Hossain, A. M.

AU - Kim, Kihyun

AU - Kopach, O. V.

AU - Sferraza, N. D.

AU - Sturgess, J.

AU - Polack, K.

AU - Raghothamachar, B.

AU - Yang, G.

AU - James, R. B.

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AB - 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.

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