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Active gating as a method to inhibit the crosstalk of Single Photon Avalanche Diodes in a shared well

By Anna Maria Vilà i Arbonès, Eva Vilella Figueras, Andreu Montiel, Oscar Alonso Casanovas and Àngel Diéguez Barrientos

Abstract

This work presents low noise readout circuits for silicon pixel detectors based on Geiger mode avalanche photodiodes. Geiger mode avalanche photodiodes offer a high intrinsic gain as well as an excellent timing accuracy. In addition, they can be compatible with standard CMOS technologies. However, they suffer from a high intrinsic noise, which induces false counts indistinguishable from real events and represents an increase of the readout electronics area to store the false counts. We have developed new front-end electronic circuitry for Geiger mode avalanche photodiodes in a conventional 0.35 µm HV-CMOS technology based on a gated mode of operation that allows low noise operation. The performance of the pixel detector is triggered and synchronized with the particle beam thanks to the gated acquisition. The circuits allow low reverse bias overvoltage operation which also improves the noise figures. Experimental characterization of the fabricated front-end circuit is presented in this work

Topics: Metall-òxid-semiconductors complementaris, Soroll electrònic, Col·lisions (Física nuclear), Circuits electrònics, Complementary metal oxide semiconductors, Electronic noise, Collisions (Nuclear physics), Electronic circuits
Publisher: Society of Photo-Optical Instrumentation Engineers (SPIE)
Year: 2016
DOI identifier: 10.1117/12.2024212
OAI identifier: oai:diposit.ub.edu:2445/99712
Journal:

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