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.
Original language | English |
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Pages (from-to) | 68-75 |
Number of pages | 8 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 608 |
Issue number | 1 |
DOIs | |
State | Published - 1 Sep 2009 |
Externally published | Yes |
Keywords
- Avalanche photodiodes
- Double beta decay
- EXO
- Low background
- Scintillation
- Xenon