CdZnTe detectors with parallel capacitive Frisch grid
نویسندگان
چکیده
منابع مشابه
New Results from Performance Studies of Frisch-Grid CdZnTe Detectors
New data regarding performance studies of Frisch-grid CdZnTe (CZT) detectors are presented. The Frisch-grid detector configuration under investigation is a bar shaped CZT crystal with the side surfaces coated with an insulating layer. A Frisch grid is fashioned by inserting the CZT bar into a metallic sleeve, or by depositing the metal directly upon the insulator; hence the semiconductor materi...
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Low-energy g-ray spectra were collected from Am, Co, Ba, Au, Cs and U using a 3.4 3.4 5.7mm CdZnTe detector utilizing an insulated Frisch ring. The CdZnTe detector was fabricated from a single crystal and a copper shim was used as the Frisch collar. Room-temperature energy resolution of 1.45% full-width half-maximum (FWHM) was obtained for Cs at 661.7 keV without electronic correction. The dete...
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The characteristics and performance for two of the latest coplanar grid CdZnTe detectors, which use the thirdgeneration coplanar grid design, will be discussed. These detectors, with dimensions of 1.5×1.5×0.9 cm and 1.5×1.5×0.95 cm, were fabricated by Baltic Scientific Instruments, Ltd., using crystals from Yinnel Tech, Inc. The high μeτe product measured for these crystals will lead to improve...
متن کاملCharge sharing in common-grid pixelated CdZnTe detectors
The charge sharing effect in pixelated CdZnTe (CZT) detectors with a common anode steering grid has been studied. The impact on energy resolution of weighting potential cross-talk and ballistic deficit due to cathode signal shaping has been investigated. A detailed system modeling package considering charge induction, electronic noise, pulse shaping, and ASIC triggering procedures has been deve...
متن کاملOptimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays
In the past, various virtual Frisch-grid designs have been proposed for cadmium zinc telluride (CZT) and other compound semiconductor detectors. These include three-terminal, semi-spherical, CAPture, Frisch-ring, capacitive Frisch-grid and pixel devices (along with their modifications). Among them, the Frisch-grid design employing a noncontacting ring extended over the entire side surfaces of p...
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ژورنال
عنوان ژورنال: JOURNAL OF INFRARED AND MILLIMETER WAVES
سال: 2012
ISSN: 1001-9014
DOI: 10.3724/sp.j.1010.2011.00514