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Title: Characterization of the ETEL and HZC 3-inch PMTs for the KM3NeT project

The KM3NeT collaboration constructs a multi-cubic-kilometer scale neutrino telescope in the Mediterranean Sea. The telescope’s detection units, deployed in the deep sea, will be instrumented with facet like Digital Optical Modules (DOMs), each housing 31 three-inch photomultiplier tubes (PMTs) and readout electronics inside of 17-inch pressure resistant glass sphere. Two companies, ET Enterprises Ltd (ETEL) from UK and HZC from China developed new 3-inch PMTs to meet KM3NeT requirements. 126 PMTs of types D783KFLA, D792KFLA, and D793KFLA from ETEL and 7 PMTs of type XP53 from HZC have been delivered to KM3NeT and tested by the KM3NeT groups of NIKHEF-Amsterdam and ECAP-Erlangen. Tests have been performed to measure the main PMT parameters listed in the KM3NeT specifications, such as gain, transit time spread, dark rate, fraction of spurious pulses, and quantum efficiency. Methods and results are presented in this report.
Authors:
;  [1] ; ; ;  [2] ; ;  [3] ;
  1. NIKHEF, Science Park 105, 1098 XG, Amsterdam, The Netherlands and Huygens-Kamerlingh Onnes Laboratorium, Universiteit Leiden, Leiden, 2300 RA (Netherlands)
  2. ECAP, University of Erlangen-Nuremberg, Erwin-Rommel-Str. 1, 91058 Erlangen (Germany)
  3. NIKHEF, Science Park 105, 1098 XG, Amsterdam (Netherlands)
Publication Date:
OSTI Identifier:
22390612
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1630; Journal Issue: 1; Conference: VLVvT 13: 6. International Workshop on Very Large Volumte Neutrino Telescopes, Stockholm (Sweden), 5-7 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GAIN; MEDITERRANEAN SEA; MULTIPARTICLE SPECTROMETERS; NEUTRINO DETECTION; NEUTRINOS; NIKHEF; PARTICLE IDENTIFICATION; QUANTUM EFFICIENCY; READOUT SYSTEMS; SCINTILLATION COUNTERS; SPECIFICATIONS; SPHERES; TELESCOPE COUNTERS