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Proceedings Paper

The effect of guard ring on leakage current and spectroscopic performance of TlBr planar detectors
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Paper Abstract

Four thallium bromide planar detectors were fabricated from materials grown at RMD Inc. The TlBr samples were prepared to investigate the effect of guard ring on device gamma-ray spectroscopy performance, and to investigate the leakage current through surface and bulk. The devices’ active area in planar configuration were 4.4 × 4.4 × 1.0 mm3. In this report, the detector fabrication process is described and the resulting energy spectra are discussed. It is shown that the guard ring improves device spectroscopic performance by shielding the sensing electrode from the surface leakage current, and by making the electric filed more uniform in the active region of the device.

Paper Details

Date Published: 4 September 2014
PDF: 9 pages
Proc. SPIE 9215, Radiation Detectors: Systems and Applications XV, 92150E (4 September 2014); doi: 10.1117/12.2065908
Show Author Affiliations
Alireza Kargar, Radiation Monitoring Devices, Inc. (United States)
Hadong Kim, Radiation Monitoring Devices, Inc. (United States)
Leonard Cirignano, Radiation Monitoring Devices, Inc. (United States)
Kanai Shah, Radiation Monitoring Devices, Inc. (United States)


Published in SPIE Proceedings Vol. 9215:
Radiation Detectors: Systems and Applications XV
Gary P. Grim; H. Bradford Barber, Editor(s)

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