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Characterization of large area APDs for the EXO-200 detector

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arxiv 0906.2499 v1 pith:HFGQFTTG submitted 2009-06-13 physics.ins-det hep-ex

Characterization of large area APDs for the EXO-200 detector

classification physics.ins-det hep-ex
keywords detectorexo-200laapdsxenonareacharacterizationdescribelarge
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 169K - the temperature of liquid xenon. We also describe the individual characterization of more than 800 LAAPDs for selective installation in the EXO-200 detector.

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