TY - JOUR

T1 - Study of cryogenic photomultiplier tubes for the future two-phase cryogenic avalanche detector

AU - Bondar, A.

AU - Buzulutskov, A.

AU - Dolgov, A.

AU - Frolov, E.

AU - Nosov, V.

AU - Shekhtman, L.

AU - Sokolov, A.

N1 - Publisher Copyright: © 2017 IOP Publishing Ltd and Sissa Medialab srl.

PY - 2017/5/5

Y1 - 2017/5/5

N2 - We report the results of a characterization study of several types of cryogenic photo-multipliers manufactured by Hamamatsu Photonics and intended for operation in liquid Ar conditions, namely: compact 2-inch R6041-506MOD tubes, 3-inch R11065-10 and R11065-MOD tubes for operation in liquid Ar and 3-inch R11410-20 tubes originally designed for operation in liquid Xe. These types of PMT are proposed for installation into the future two-phase cryogenic avalanche detector that is developed in the Laboratory of Cosmology and Particle Physics of the Novosibirsk State University jointly with the Budker Institute of Nuclear Physics. Eight R11065 PMTs and seven R11410-20 tubes were tested and all demonstrated excellent performance in liquid Ar in terms of gain and relative single electron efficiency. All 3-inch PMTs showed a maximal gain in liquid Ar above 5x106 and relative single electron efficiency higher than 95%. Compact R6041-506MOD tubes have dynode system different from that of the 3-inch photomultipliers and thus their single electron energy resolution and relative efficiency is much worse than that of 3-inch tubes. From 21 2-inch PMTs only 12 tubes were selected with acceptable, i.e. higher than 75%, relative single electron efficiency and the maximal gain higher than 5x106. However, these PMTs are very attractive because they are the only compact type of tubes that can operate in liquid Ar.

AB - We report the results of a characterization study of several types of cryogenic photo-multipliers manufactured by Hamamatsu Photonics and intended for operation in liquid Ar conditions, namely: compact 2-inch R6041-506MOD tubes, 3-inch R11065-10 and R11065-MOD tubes for operation in liquid Ar and 3-inch R11410-20 tubes originally designed for operation in liquid Xe. These types of PMT are proposed for installation into the future two-phase cryogenic avalanche detector that is developed in the Laboratory of Cosmology and Particle Physics of the Novosibirsk State University jointly with the Budker Institute of Nuclear Physics. Eight R11065 PMTs and seven R11410-20 tubes were tested and all demonstrated excellent performance in liquid Ar in terms of gain and relative single electron efficiency. All 3-inch PMTs showed a maximal gain in liquid Ar above 5x106 and relative single electron efficiency higher than 95%. Compact R6041-506MOD tubes have dynode system different from that of the 3-inch photomultipliers and thus their single electron energy resolution and relative efficiency is much worse than that of 3-inch tubes. From 21 2-inch PMTs only 12 tubes were selected with acceptable, i.e. higher than 75%, relative single electron efficiency and the maximal gain higher than 5x106. However, these PMTs are very attractive because they are the only compact type of tubes that can operate in liquid Ar.

KW - Cryogenic detectors

KW - Dark Matter detectors (WIMPs, axions, etc.)

KW - Photon detectors for UV, visible and IR photons (vacuum) (photomultipliers, HPDs, others)

KW - XENON

KW - EMISSION

KW - ARGON

UR - http://www.scopus.com/inward/record.url?scp=85020944213&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/12/05/C05002

DO - 10.1088/1748-0221/12/05/C05002

M3 - Article

AN - SCOPUS:85020944213

VL - 12

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 5

M1 - 05002

ER -