Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 922, Issue -, Pages 373-384Publisher
ELSEVIER
DOI: 10.1016/j.nima.2018.12.058
Keywords
PMT; Hamamatsu R5912-HQE; Single photoelectron charge distribution; Afterpulsing; Late and double pulsing; Dark noise; Dark matter detection
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada
- Canadian Foundation for Innovation
- Ontario Ministry of Research and Innovation
- Alberta Advanced Education and Technology Ministry (Alberta Science and Research Investments Program)
- European Research Council Project [ERC StG 279980]
- UK Science & Technology Facilities Council (STFC) [ST/K002570/1]
- Leverhulme Trust [ECF-20130496]
- Rutherford Appleton Laboratory Particle Physics Division, STFC and SEPNet Ph.D. studentship
- DGAPA-UNAM through grant PAPIIT [IA100316]
- Canada Foundation for Innovation
- Province of Ontario Ministry of Research and Innovation
- STFC [ST/S000844/1, ST/R002908/1, ST/K002570/1] Funding Source: UKRI
Ask authors/readers for more resources
The Hamamatsu R5912-HQE photomultiplier-tube (PMT) is a novel high-quantum efficiency PMT. It is currently used in the DEAP-3600 dark matter detector and is of significant interest for future dark matter and neutrino experiments where high signal yields are needed. We report on the methods developed for in-situ characterization and monitoring of DEAP's 255 R5912-HQE PMTS. This includes a detailed discussion of typical measured single-photoelectron charge distributions, correlated noise (afterpulsing), dark noise, double, and late pulsing characteristics. The characterization is performed during the detector commissioning phase using laser light injected through a light diffusing sphere and during normal detector operation using LED light injected through optical fibres.
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