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Elsevier, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1(608), p. 68-75

DOI: 10.1016/j.nima.2009.06.029

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Characterization of Large Area APDs for the EXO-200 Detector

Journal article published in 2009 by F. LePort, A. Pocar, R.; LePort F.; Pocar A.; /Stanford U. Phys Dept.;Kumar K.; /Massachusetts U. Amherst;Odian A.; Prescott C. Y.; /SLAC;Tenev V.; /Stanford U. Dept.; Ackerman N.; /SLAC;Akimov D.; /Moscow ITEP;Auger M.; /Bern U. LHEP;Benitez-Medina C.; /Colorado State U.; Neilson, A. Odian, K. S. Kumar, C. Y. Prescott, V. Tenev, N. Ackerman, D. Akimov, M. Auger, C. Benitez Medina, M. Breidenbach, A. Burenkov, R. Conley, R. deVoe and other authors.
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This paper is available in a repository.

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Abstract

Enriched Xenon Observatory (EXO)-200 uses 468 large area avalanche photodiodes (LAAPDs) for detection of scintillation light in an ultra-low-background liquid xenon (LXe) detector. We describe initial measurements of dark noise, gain and response to xenon scintillation light of LAAPDs at temperatures from room temperature to 169 K-the temperature of liquid xenon. We also describe the individual characterization of more than 800 LAAPDs for selective installation in the EXO-200 detector. (c) 2009 Elsevier B.V. All rights reserved.