Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction

A. E. Bolotnikov; G. S. Camarda; Y. Cui; S. U. Egarievwe; P. M. Fochuk; M. Fuerstnau; R. Gul; A. Hossain; F. Jones; K. Kim; O. V. Kopach; R. Taggart; G. Yang; Z. Ye; L. Xu; R. B. James

doi:10.1117/12.861775

Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction

A. E. Bolotnikov, G. S. Camarda, Y. Cui, S. U. Egarievwe, P. M. Fochuk, M. Fuerstnau, R. Gul, A. Hossain, F. Jones, K. Kim, O. V. Kopach, R. Taggart, G. Yang, Z. Ye, L. Xu, R. B. James

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

8 Citations (Scopus)

Abstract

We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.

Original language	English
Title of host publication	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII
DOIs	https://doi.org/10.1117/12.861775
Publication status	Published - 2010
Externally published	Yes
Event	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII - San Diego, CA, United States Duration: 2010 Aug 2 → 2010 Aug 4

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7805
ISSN (Print)	0277-786X

Other

Other	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII
Country/Territory	United States
City	San Diego, CA
Period	10/8/2 → 10/8/4

Keywords

CdZnTe detectors
crystal defects
virtual Frisch-grid 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

10.1117/12.861775

Cite this

Bolotnikov, A. E., Camarda, G. S., Cui, Y., Egarievwe, S. U., Fochuk, P. M., Fuerstnau, M., Gul, R., Hossain, A., Jones, F., Kim, K., Kopach, O. V., Taggart, R., Yang, G., Ye, Z., Xu, L., & James, R. B. (2010). Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction. In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII [780504] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7805). https://doi.org/10.1117/12.861775

Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction. / Bolotnikov, A. E.; Camarda, G. S.; Cui, Y.; Egarievwe, S. U.; Fochuk, P. M.; Fuerstnau, M.; Gul, R.; Hossain, A.; Jones, F.; Kim, K.; Kopach, O. V.; Taggart, R.; Yang, G.; Ye, Z.; Xu, L.; James, R. B.

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII. 2010. 780504 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7805).

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

Bolotnikov, AE, Camarda, GS, Cui, Y, Egarievwe, SU, Fochuk, PM, Fuerstnau, M, Gul, R, Hossain, A, Jones, F, Kim, K, Kopach, OV, Taggart, R, Yang, G, Ye, Z, Xu, L & James, RB 2010, Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction. in Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII., 780504, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7805, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII, San Diego, CA, United States, 10/8/2. https://doi.org/10.1117/12.861775

Bolotnikov, A. E. ; Camarda, G. S. ; Cui, Y. ; Egarievwe, S. U. ; Fochuk, P. M. ; Fuerstnau, M. ; Gul, R. ; Hossain, A. ; Jones, F. ; Kim, K. ; Kopach, O. V. ; Taggart, R. ; Yang, G. ; Ye, Z. ; Xu, L. ; James, R. B. / Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction. Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII. 2010. (Proceedings of SPIE - The International Society for Optical Engineering).

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author = "Bolotnikov, {A. E.} and Camarda, {G. S.} and Y. Cui and Egarievwe, {S. U.} and Fochuk, {P. M.} and M. Fuerstnau and R. Gul and A. Hossain and F. Jones and K. Kim and Kopach, {O. V.} and R. Taggart and G. Yang and Z. Ye and L. Xu and James, {R. B.}",

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AU - Camarda, G. S.

AU - Cui, Y.

AU - Egarievwe, S. U.

AU - Fochuk, P. M.

AU - Fuerstnau, M.

AU - Gul, R.

AU - Hossain, A.

AU - Jones, F.

AU - Kim, K.

AU - Kopach, O. V.

AU - Taggart, R.

AU - Yang, G.

AU - Ye, Z.

AU - Xu, L.

AU - James, R. B.

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N2 - We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.

AB - We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.

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KW - crystal defects

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Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction

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Keywords

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