From Event: SPIE Optical Engineering + Applications, 2017
We present new results from testing a small array of position-sensitive virtual Frisch-grid gamma-ray detectors. Such arrays provide high-detection efficiency, excellent energy and position resolution. They can be used in compact hand-held instruments or in large-area gamma ray imaging cameras. The high granularity position sensing enables these detectors to correct the response non-uniformity caused by crystal defects. This important feature allows one to achieve high detection performance while using standard-grade (unselected) CZT crystals, which is expected to reduce the overall cost of field deployable high-resolution CZT gamma ray detection instruments. Here, we report the results of testing several array prototypes with configurations designed for different applications.
Aleksey E. Bolotnikov, Giuseppe S. Camarda, Rubi Gul, Gianluigi De Geronimo, Jack Fried, Ge Yang, Anwar Hossain, Luis Ocampo Giraldo, Emerson Vernon, and Ralph B. James, "Arrays of position sensitive virtual Frisch-grid detectors (Conference Presentation)," Proc. SPIE 10392, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX, 103920P (Presented at SPIE Optical Engineering + Applications: August 08, 2017; Published: 3 October 2017); https://doi.org/10.1117/12.2275966.5597187957001.
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