Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 608, Issue 1, Pages 68-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2009.06.029
Keywords
Avalanche photodiodes; Double beta decay; Xenon; EXO; Low background; Scintillation
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Funding
- DoE
- NSF in the United States
- NSERC in Canada
- FNS in Switzerland
- Ministry for Science and Education of the Russian Federation in Russia
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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.
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