21 September 2007 Optimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays
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Abstract
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 non-contacting ring extended over the entire side surfaces of parallelepiped-shaped CZT crystals is the most promising. The defect-free parallelepiped-shaped crystals with typical dimensions of 5x5x12 mm3 are easy to produce and can be arranged into large arrays used for imaging and gamma-ray spectroscopy. In this paper, we report on further advances of the virtual Frisch-grid detector design for the parallelepiped-shaped CZT crystals. Both the experimental testing and modelling results are described.
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A. E. Bolotnikov, A. E. Bolotnikov, N M. Abdul-Jabbar, N M. Abdul-Jabbar, S. Babalola, S. Babalola, G. S. Camarda, G. S. Camarda, Y. Cui, Y. Cui, A. Hossain, A. Hossain, E. Jackson, E. Jackson, H. Jackson, H. Jackson, J. R. James, J. R. James, A L. Luryi, A L. Luryi, R. B. James, R. B. James, } "Optimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays", Proc. SPIE 6706, Hard X-Ray and Gamma-Ray Detector Physics IX, 670603 (21 September 2007); doi: 10.1117/12.736654; https://doi.org/10.1117/12.736654
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