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SUMMARY:The impact of permanent magnetic fields on photomultiplier HAMAMAT
 SU R7899-20\,
DTSTART;VALUE=DATE-TIME:20161014T121500Z
DTEND;VALUE=DATE-TIME:20161014T124500Z
DTSTAMP;VALUE=DATE-TIME:20261014T231448Z
UID:indico-contribution-620@cern.ch
DESCRIPTION:Speakers: Valery Dmitrenko (NRNU MEPhI)\nThe influence of a pe
 rmanent magnetic field strength of up to 40 Gs to work PMT HAMAMATSU R7899
 -20 with its regular magnetic screens and without them is investigated. Th
 is PMT is used in a hadron calorimeter of LHCb experiment at CERN. It is s
 hown that the use of a protective housing made of steel in joint its use w
 ith Permalloy screen significantly reduces screening efficiency. It propos
 ed to use a protective housing made from non-magnetic material (duralumin)
  electrolytic coated with a multilayered film as magnetic shield. This sol
 ution can be used in a hadron calorimeter\, the CERN installations SHiP.\n
 \nhttps://indico.particle.mephi.ru/event/4/contributions/620/
LOCATION:Milan Hotel Hall of the 2nd floor
URL:https://indico.particle.mephi.ru/event/4/contributions/620/
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