18 December 2000 Multiplexed avalanche photodiode arrays
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Abstract
Radiation Monitoring Devices has carried out research to develop a monolithic array of multiplexed, high-gain avalanche photodiodes suitable for use in a spectroscopic radiation-imaging device. To dramatically reduce the electronics required to support a large array we have utilized a unique property of avalanche photodiodes, and the method in which they are produced, to develop a relatively simple readout scheme using row-column addressing. Results indicate that there is good charge sharing between diode contacts on the back of a photodiode, feedback and crosstalk are minimal between avalanche photodiodes connected to a common data line using the diode-contact approach, and that reducing the noise contribution of each separate avalanche photodiode to the common data lien remains a critical issue to be examined further.
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Mitchell Woodring, Mitchell Woodring, Richard Farell, Richard Farell, David Souza, David Souza, Michael R. Squillante, Michael R. Squillante, Gerald Entine, Gerald Entine, David K. Wehe, David K. Wehe, } "Multiplexed avalanche photodiode arrays", Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410575; https://doi.org/10.1117/12.410575
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