Correlations between crystal defects and performance of CdZnTe detectors

A. E. Bolotnikov; S. Babalola; G. S. Camarda; Y. Cui; R. Gul; S. U. Egarievwe; P. M. Fochuk; M. Fuerstnau; J. Horace; A. Hossain; F. Jones; K. H. Kim; O. V. Kopach; B. McCall; L. Marchini; B. Raghothamachar; R. Taggart; G. Yang; L. Xu; R. B. James

doi:10.1109/TNS.2011.2160283

Correlations between crystal defects and performance of CdZnTe detectors

A. E. Bolotnikov, S. Babalola, G. S. Camarda, Y. Cui, R. Gul, S. U. Egarievwe, P. M. Fochuk, M. Fuerstnau, J. Horace, A. Hossain, F. Jones, K. H. Kim, O. V. Kopach, B. McCall, L. Marchini, B. Raghothamachar, R. Taggart, G. Yang, L. Xu, R. B. James

School of Health and Environmental Science

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

Poor crystallinity remains a major problem affecting the availability and cost of CdZnTe (CZT) detectors. Point defects are responsible for small gradual charge loss and correlated with the electron clouds' drift times, which allows electronic correction of the output signals to achieve high spectral-resolution even with large-volume CZT detectors. In contrast, extended defects causes significant charge losses, which typically are uncorrelated, and, thus, result in much greater fluctuations of the output signals that cannot be corrected. Although extended defects do not affect all the interaction events, their fraction rapidly increases with the crystal's thickness and volume. In this paper, we summarize our recent results from testing CZT material and detectors that emphasize the particular roles of two types of extended defects, and their contributions to the device's overall performance.

Original language	English
Article number	5960003
Pages (from-to)	1972-1980
Number of pages	9
Journal	IEEE Transactions on Nuclear Science
Volume	58
Issue number	4 PART 2
DOIs	https://doi.org/10.1109/TNS.2011.2160283
Publication status	Published - 2011 Aug

Keywords

CdZnTe
crystal defects
radiation detectors

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

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10.1109/TNS.2011.2160283

Cite this

Bolotnikov, A. E., Babalola, S., Camarda, G. S., Cui, Y., Gul, R., Egarievwe, S. U., Fochuk, P. M., Fuerstnau, M., Horace, J., Hossain, A., Jones, F., Kim, K. H., Kopach, O. V., McCall, B., Marchini, L., Raghothamachar, B., Taggart, R., Yang, G., Xu, L., & James, R. B. (2011). Correlations between crystal defects and performance of CdZnTe detectors. IEEE Transactions on Nuclear Science, 58(4 PART 2), 1972-1980. [5960003]. https://doi.org/10.1109/TNS.2011.2160283

Correlations between crystal defects and performance of CdZnTe detectors. / Bolotnikov, A. E.; Babalola, S.; Camarda, G. S.; Cui, Y.; Gul, R.; Egarievwe, S. U.; Fochuk, P. M.; Fuerstnau, M.; Horace, J.; Hossain, A.; Jones, F.; Kim, K. H.; Kopach, O. V.; McCall, B.; Marchini, L.; Raghothamachar, B.; Taggart, R.; Yang, G.; Xu, L.; James, R. B.

In: IEEE Transactions on Nuclear Science, Vol. 58, No. 4 PART 2, 5960003, 08.2011, p. 1972-1980.

Research output: Contribution to journal › Article › peer-review

Bolotnikov, AE, Babalola, S, Camarda, GS, Cui, Y, Gul, R, Egarievwe, SU, Fochuk, PM, Fuerstnau, M, Horace, J, Hossain, A, Jones, F, Kim, KH, Kopach, OV, McCall, B, Marchini, L, Raghothamachar, B, Taggart, R, Yang, G, Xu, L & James, RB 2011, 'Correlations between crystal defects and performance of CdZnTe detectors', IEEE Transactions on Nuclear Science, vol. 58, no. 4 PART 2, 5960003, pp. 1972-1980. https://doi.org/10.1109/TNS.2011.2160283

Bolotnikov, A. E. ; Babalola, S. ; Camarda, G. S. ; Cui, Y. ; Gul, R. ; Egarievwe, S. U. ; Fochuk, P. M. ; Fuerstnau, M. ; Horace, J. ; Hossain, A. ; Jones, F. ; Kim, K. H. ; Kopach, O. V. ; McCall, B. ; Marchini, L. ; Raghothamachar, B. ; Taggart, R. ; Yang, G. ; Xu, L. ; James, R. B. / Correlations between crystal defects and performance of CdZnTe detectors. In: IEEE Transactions on Nuclear Science. 2011 ; Vol. 58, No. 4 PART 2. pp. 1972-1980.

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Correlations between crystal defects and performance of CdZnTe detectors

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Keywords

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