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In-situ characterization of the Hamamatsu R5912-HQE photomultiplier tubes used in the DEAP-3600 experiment

  • Author(s): Amaudruz, P-A
  • Batygov, M
  • Beltran, B
  • Bina, CE
  • Bishop, D
  • Bonatt, J
  • Boorman, G
  • Boulay, MG
  • Broerman, B
  • Bromwich, T
  • Bueno, JF
  • Butcher, A
  • Cai, B
  • Chan, S
  • Chen, M
  • Chouinard, R
  • Churchwell, S
  • Cleveland, BT
  • Cranshaw, D
  • Dering, K
  • Dittmeier, S
  • Duncan, FA
  • Dunford, M
  • Erlandson, A
  • Fatemighomi, N
  • Ford, RJ
  • Gagnon, R
  • Giampa, P
  • Golovko, VV
  • Gorel, P
  • Gornea, R
  • Grace, E
  • Graham, K
  • Grant, DR
  • Gulyev, E
  • Hall, A
  • Hallin, AL
  • Hamstra, M
  • Harvey, PJ
  • Hearns, C
  • Jillings, CJ
  • Kamaev, O
  • Kemp, A
  • Kuźniak, M
  • Langrock, S
  • La Zia, F
  • Lehnert, B
  • Li, O
  • Lidgard, JJ
  • Liimatainen, P
  • Lim, C
  • Lindner, T
  • Linn, Y
  • Liu, S
  • Mathew, R
  • McDonald, AB
  • McElroy, T
  • McFarlane, K
  • McLaughlin, J
  • Mead, S
  • Mehdiyev, R
  • Mielnichuk, C
  • Monroe, J
  • Muir, A
  • Nadeau, P
  • Nantais, C
  • Ng, C
  • Noble, AJ
  • O’Dwyer, E
  • Ohlmann, C
  • Olchanski, K
  • Olsen, KS
  • Ouellet, C
  • Pasuthip, P
  • Peeters, SJM
  • Pollmann, TR
  • Rand, ET
  • Rau, W
  • Rethmeier, C
  • Retière, F
  • Seeburn, N
  • Shaw, B
  • Singhrao, K
  • Skensved, P
  • Smith, B
  • Smith, NJT
  • Sonley, T
  • Stainforth, R
  • Stone, C
  • Strickland, V
  • Sur, B
  • Tang, J
  • Taylor, J
  • Veloce, L
  • Vázquez-Jáuregui, E
  • Walding, J
  • Ward, M
  • Westerdale, S
  • White, R
  • Woolsey, E
  • Zielinski, J
  • et al.
Abstract

© 2018 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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