Optimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays

A. E. Bolotnikov; N M. Abdul-Jabbar; S. Babalola; G. S. Camarda; Y. Cui; A. Hossain; E. Jackson; H. Jackson; J. R. James; A L. Luryi; R. B. James

doi:10.1117/12.736654

21 September 2007 Optimization of virtual Frisch-grid CdZnTe detector designs for imaging and spectroscopy of gamma rays

A. E. Bolotnikov, N M. Abdul-Jabbar, S. Babalola, G. S. Camarda, Y. Cui, A. Hossain, E. Jackson, H. Jackson, J. R. James, A L. Luryi, R. B. James

Author Affiliations +

Proceedings Volume 6706, Hard X-Ray and Gamma-Ray Detector Physics IX; 670603 (2007) https://doi.org/10.1117/12.736654
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

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, N M. Abdul-Jabbar, S. Babalola, G. S. Camarda, Y. Cui, A. Hossain, E. Jackson, H. Jackson, J. R. James, A L. Luryi, and 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); https://doi.org/10.1117/12.736654

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