Avalanche photodiodes for anticoincidence detectors

Leonard J. Cirignano; Richard Farrell; Robert H. Redus; Michael R. Squillante; Stanley D. Hunter; Rajani Cuddapah; Reshmi Mukherjee

doi:10.1117/12.254007

18 October 1996 Avalanche photodiodes for anticoincidence detectors

Leonard J. Cirignano, Richard Farrell, Robert H. Redus, Michael R. Squillante, Stanley D. Hunter, Rajani Cuddapah, Reshmi Mukherjee

Author Affiliations +

Proceedings Volume 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions; (1996) https://doi.org/10.1117/12.254007
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Anticoincidence detectors are required for a variety of satellite instruments, including high energy gamma-ray telescopes, in order to differentiate ambient background radiation from signals of interest. Presently, most anticoincidence systems use scintillators coupled to photomultiplier tubes. We have demonstrated that it is now possible to use very high gain solid state avalanche photodiodes (APDs) as photodetectors for this application. A single APD coupled to a 30 cm multiplied by 30 cm multiplied by 0.95 cm plastic scintillator tile demonstrated 100% detection efficiency for minimum ionizing particles, with a low false positive rate. Multiple APDs enhance the signal to noise ratio in addition to providing redundancy. Relative to PMTs, APDs are compact, low power, and mechanically robust devices. Ground test data of APDs for anticoincidence shields is presented.

Citation Download Citation

Leonard J. Cirignano, Richard Farrell, Robert H. Redus, Michael R. Squillante, Stanley D. Hunter, Rajani Cuddapah, and Reshmi Mukherjee "Avalanche photodiodes for anticoincidence detectors", Proc. SPIE 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions, (18 October 1996); https://doi.org/10.1117/12.254007

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