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Proceedings Paper

Multiplexed avalanche photodiode arrays
Author(s): Mitchell Woodring; Richard Farell; David Souza; Michael R. Squillante; Gerald Entine; David K. Wehe
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Paper 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.

Paper Details

Date Published: 18 December 2000
PDF: 10 pages
Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410575
Show Author Affiliations
Mitchell Woodring, Radiation Monitoring Devices, Inc. (United States)
Richard Farell, Radiation Monitoring Devices, Inc. (United States)
David Souza, Radiation Monitoring Devices, Inc. (United States)
Michael R. Squillante, Radiation Monitoring Devices, Inc. (United States)
Gerald Entine, Radiation Monitoring Devices, Inc. (United States)
David K. Wehe, Univ. of Michigan (United States)


Published in SPIE Proceedings Vol. 4142:
Penetrating Radiation Systems and Applications II
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Edward J. Morton, Editor(s)

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