Evaluation of GM-APD array devices for low-light-level imaging
ADVANCED PHOTON COUNTING TECHNIQUES VIII(2014)
摘要
The ability to count single photons is necessary to achieve many important science objectives in the near future. This paper presents the lab-tested performance of a photon-counting array-based Geiger-mode avalanche photodiode (GMAPD) device in the context of low-light-level imaging. Testing results include dark count rate, afterpulsing probability, intra-pixel sensitivity, and photon detection efficiency, and the effects of radiation damage on detector performance. The GM-APD detector is compared to the state-of-the-art performance of other established detectors using Signal-to-noise ratio as the overall evaluation metric.
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关键词
GM-APD,photon counting,imaging detectors,low-light-level imaging,signal-to-noise ratio
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