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SUMMARY:Study of focusing aerogels with electron beam
DTSTART;VALUE=DATE-TIME:20140227T023000Z
DTEND;VALUE=DATE-TIME:20140227T025500Z
DTSTAMP;VALUE=DATE-TIME:20260416T022207Z
UID:indico-contribution-21@indico.inp.nsk.su
DESCRIPTION:Speakers: Sergey Kononov (Budker Institute of Nuclear Physics 
 SB RAS)\nRecent results from the beam test of the FARICH detector prototyp
 es at the BINP electron beam line are reported. We studied several samples
  of focusing aerogel using multichannel SiPM photodetectors with a high po
 sition resolution. One of photodetectors was based on novel digital SiPM t
 echnology - Digital Photon Counter produced by Philips. Particle track was
  measured by gaseous strip detectors based on GEMs that have 70 μm resolu
 tion. That allowed us to precisely measure the radius distribution of Cher
 enkov photons from aerogel and compare with a prediction based on aerogel 
 refractive index profile obtained by a digital radiography.\nIn 2012\, the
  first aerogel blocks with a continuous density gradient along thickness w
 ere produced. This technology can dramatically reduce the contribution fro
 m the radiator thickness to the resolution of the measured Cherenkov angle
  in the FARICH detector. A special automatic setup was used to control rea
 gents ratio during the synthesis process. The first few samples were teste
 d using a digital radiography and the electron beam.\n\nhttps://indico.inp
 .nsk.su/event/0/contributions/21/
LOCATION:
URL:https://indico.inp.nsk.su/event/0/contributions/21/
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