Leakage currents and capacitances of thick CZT detectors

Alfred Garson; Qiang Li; Ira V. Jung; Paul Dowkontt; Richard Bose; Garry Simburger; Henric Krawczynski

doi:10.1109/NSSMIC.2007.4436597

Leakage currents and capacitances of thick CZT detectors

Alfred Garson, Qiang Li, Ira V. Jung, Paul Dowkontt, Richard Bose, Garry Simburger, Henric Krawczynski

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

3 Scopus citations

Abstract

The quality of Cadmium Zinc Telluride (CZT) detectors is steadily improving. For state of the art detectors, readout noise is thus becoming an increasingly important factor for the overall energy resolution. In this contribution, we present measurements and calculations of the dark currents and capacitances of 0.5 cm thick CZT detectors contacted with a monolithic cathode and 8×8 anode pixels on a surface of 2×2 cm². Using the NCI ASIC from Brookhaven National lab as an example, we estimate the readout noise caused by the dark currents and capacitances. Furthermore, we discuss possible additional readout noise caused by pixel-pixel and pixel-cathode noise cross-coupling.

Original language	English
Title of host publication	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages	2258-2261
Number of pages	4
DOIs	https://doi.org/10.1109/NSSMIC.2007.4436597
State	Published - 2007
Event	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States Duration: Oct 27 2007 → Nov 3 2007

Publication series

Name	IEEE Nuclear Science Symposium Conference Record
Volume	3
ISSN (Print)	1095-7863

Conference

Conference	2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Country/Territory	United States
City	Honolulu, HI
Period	10/27/07 → 11/3/07

Keywords

CZT
Electronic noise
Radiation detection

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10.1109/NSSMIC.2007.4436597

Cite this

Garson, A., Li, Q., Jung, I. V., Dowkontt, P., Bose, R., Simburger, G., & Krawczynski, H. (2007). Leakage currents and capacitances of thick CZT detectors. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (pp. 2258-2261). Article 4436597 (IEEE Nuclear Science Symposium Conference Record; Vol. 3). https://doi.org/10.1109/NSSMIC.2007.4436597

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title = "Leakage currents and capacitances of thick CZT detectors",

abstract = "The quality of Cadmium Zinc Telluride (CZT) detectors is steadily improving. For state of the art detectors, readout noise is thus becoming an increasingly important factor for the overall energy resolution. In this contribution, we present measurements and calculations of the dark currents and capacitances of 0.5 cm thick CZT detectors contacted with a monolithic cathode and 8×8 anode pixels on a surface of 2×2 cm2. Using the NCI ASIC from Brookhaven National lab as an example, we estimate the readout noise caused by the dark currents and capacitances. Furthermore, we discuss possible additional readout noise caused by pixel-pixel and pixel-cathode noise cross-coupling.",

keywords = "CZT, Electronic noise, Radiation detection",

author = "Alfred Garson and Qiang Li and Jung, {Ira V.} and Paul Dowkontt and Richard Bose and Garry Simburger and Henric Krawczynski",

year = "2007",

doi = "10.1109/NSSMIC.2007.4436597",

language = "English",

isbn = "1424409233",

series = "IEEE Nuclear Science Symposium Conference Record",

pages = "2258--2261",

booktitle = "2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC",

note = "2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC ; Conference date: 27-10-2007 Through 03-11-2007",

}

Garson, A, Li, Q, Jung, IV, Dowkontt, P, Bose, R, Simburger, G & Krawczynski, H 2007, Leakage currents and capacitances of thick CZT detectors. in 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC., 4436597, IEEE Nuclear Science Symposium Conference Record, vol. 3, pp. 2258-2261, 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC, Honolulu, HI, United States, 10/27/07. https://doi.org/10.1109/NSSMIC.2007.4436597

Leakage currents and capacitances of thick CZT detectors. / Garson, Alfred; Li, Qiang; Jung, Ira V. et al.
2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. 2007. p. 2258-2261 4436597 (IEEE Nuclear Science Symposium Conference Record; Vol. 3).

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

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AU - Krawczynski, Henric

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KW - Radiation detection

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Leakage currents and capacitances of thick CZT detectors

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