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 |
|---|---|
| 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
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