Correlations Between Crystal Defects and Performance of CdZnTe Detectors

被引：51

作者：

Bolotnikov, A. E. ^{[1
]}

Babalola, S. ^{[2
]}

Camarda, G. S. ^{[1
]}

Cui, Y. ^{[1
]}

Gul, R. ^{[1
]}

Egarievwe, S. U. ^{[2
]}

Fochuk, P. M. ^{[3
]}

Fuerstnau, M. ^{[1
]}

Horace, J. ^{[2
]}

Hossain, A. ^{[1
]}

Jones, F. ^{[1
]}

Kim, K. H.

Kopach, O. V. ^{[3
]}

McCall, B. ^{[2
]}

Marchini, L. ^{[4
]}

Raghothamachar, B. ^{[5
]}

Taggart, R. ^{[1
]}

Yang, G. ^{[1
]}

Xu, L. ^{[6
]}

James, R. B. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11793 USA

[2] Alabama A&M Univ, Huntsville, AL 35762 USA

[3] Chernivtsi Natl Univ, UA-58012 Chernovtsy, Ukraine

[4] IMEM CNR, I-43124 Parma, Italy

[5] SUNY Stony Brook, Stony Brook, NY 11794 USA

[6] Northwestern Polytech Univ, Xian 710072, Shaanxi, Peoples R China

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2011年 / 58卷 / 04期

关键词：

CdZnTe; crystal defects; radiation detectors; TE INCLUSIONS; GROWTH;

D O I：

10.1109/TNS.2011.2160283

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Poor crystallinity remains a major problem affecting the availability and cost of CdZnTe 9CZT) 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.

引用

页码：1972 / 1980

页数：9

共 22 条

[1]

Bale D.S., 2010, J APPL PHYS, V107

[2] Cumulative effects of Te precipitates in CdZnTe radiation detectors [J].

Bolotnikov, A. E. ;

Camarda, G. S. ;

Carini, G. A. ;

Cui, Y. ;

Li, L. ;

James, R. B. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 571 (03) :687-698

[3] Modelling the effects of Te precipitates on the electron transport in CdZnTe radiation detectors [J].

Bolotnikov, A. E. ;

Camarda, G. S. ;

Carini, G. A. ;

Cui, Y. ;

Li, L. ;

James, R. B. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 579 (01) :125-129

[4] Internal Electric-Field-Lines Distribution in CdZnTe Detectors Measured Using X-Ray Mapping [J].

Bolotnikov, A. E. ;

Camarda, G. S. ;

Cui, Y. ;

Hossain, A. ;

Yang, G. ;

Yao, H. W. ;

James, R. B. .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2009, 56 (03) :791-794

[5] Effects of Te Inclusions on the Performance of CdZnTe Radiation Detectors [J].

Bolotnikov, A. E. ;

Abdul-Jabbar, N. M. ;

Babalola, O. S. ;

Camarda, G. S. ;

Cui, Y. ;

Hossain, A. M. ;

Jackson, E. M. ;

Jackson, H. C. ;

James, J. A. ;

Kohman, K. T. ;

Luryi, A. L. ;

James, R. B. .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2008, 55 (05) :2757-2764

[6]

Bolotnikov A. E., 2010, P HARD XRAY GAMM RAY, V7805

[7] Te Inclusions in CZT Detectors: New Method for Correcting Their Adverse Effects [J].

Bolotnikov, Aleksey E. ;

Babalola, Stephen ;

Camarda, Giuseppe S. ;

Cui, Yonggang ;

Egarievwe, Stephen U. ;

Hawrami, R. ;

Hossain, Anwar ;

Yang, Ge ;

James, Ralph B. .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2010, 57 (02) :910-919

[8] Extended Defects in CdZnTe Radiation Detectors [J].

Bolotnikov, Aleksey E. ;

Babalola, Stephen O. ;

Camarda, Giuseppe S. ;

Chen, Henry ;

Awadalla, S. ;

Cui, Yonggang ;

Egarievwe, Stephrn U. ;

Fochuk, Petro M. ;

Hawrami, Rastgo ;

Hossain, Anwar ;

James, Jesse R. ;

Nakonechnyj, I. J. ;

Mackenzie, J. ;

Yang, Ge ;

Xu, Chao ;

James, Ralph B. .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2009, 56 (04) :1775-1783

[9] Characterizations and measurements of CZT material: Novel techniques and results [J].

Camarda, G. S. ;

Abdul-Jabbar, N. M. ;

Babalola, S. ;

Bolotnikov, A. E. ;

Cui, Y. ;

Hossain, A. ;

Jackson, E. ;

Jackson, H. ;

James, J. R. ;

Luryi, A. L. ;

Groza, M. ;

Burger, A. ;

James, R. B. .

HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS IX, 2007, 6706

[10] Radiation detection - Effects of Tellurium precipitates on charge collection in CZT nuclear radiation detectors [J].

Camarda, G. S. ;

Bolotnikov, A. E. ;

Carini, G. A. ;

James, R. B. ;

Li, L. .

COUNTERING NUCLEAR AND RADIOLOGICAL TERRORISM, 2006, 7 :199-+

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