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SUMMARY:Influence of the photoelectric effect occurring at the PMT first d
 ynode on the RED-100 detector performance
DTSTART;VALUE=DATE-TIME:20161010T140500Z
DTEND;VALUE=DATE-TIME:20161010T141800Z
DTSTAMP;VALUE=DATE-TIME:20260711T150445Z
UID:indico-contribution-778@cern.ch
DESCRIPTION:Speakers: Yury Melikyan (NRNU MEPhI)\nThe RED-100 two-phase xe
 non emission detector utilizes Hamamatsu R11410-20 PMTs to detect VUV lumi
 nescent photons. It was observed\, that the background PMT illumination wi
 th the luminescent light from cosmogenic muons leads to signal generation 
 at the PMT anode even when the photocathodes are blocked with the help of 
 a dedicated controllable PMT base. We attribute this fact to the photoelec
 tric effect occurring at the PMT first dynode. Results of quantitative mea
 surements of its influence on the RED-100 photodetection system performanc
 e are presented here\, including the estimation of the first dynode’s qu
 antum efficiency\, which is measured to be ≥9%.\n\nhttps://indico.partic
 le.mephi.ru/event/4/contributions/778/
LOCATION:Milan Hotel Vivaldi-Boccerini
URL:https://indico.particle.mephi.ru/event/4/contributions/778/
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