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SUMMARY:Upgrade of the ATLAS Hadronic Tile Calorimeter for the High Lumino
 sity LHC
DTSTART;VALUE=DATE-TIME:20201007T094000Z
DTEND;VALUE=DATE-TIME:20201007T100000Z
DTSTAMP;VALUE=DATE-TIME:20260819T051306Z
UID:indico-contribution-2303@cern.ch
DESCRIPTION:Speakers: Christophe Clement (Stockholm University)\nThe Tile 
 Calorimeter (TileCal) is the hadronic calorimeter covering the central reg
 ion of the ATLAS experiment. It is a sampling calorimeter with steel as ab
 sorber and scintillators as active medium. The scintillators are read-out 
 by wavelength shifting fibers coupled to photomultiplier tubes (PMTs).  Th
 e TileCal response and its readout electronics are monitored to better tha
 n 1% using radioactive source\, laser and charge injection systems. \nBoth
  the on- and off-detector TileCal electronics will undergo major upgrades 
 in preparation for the high luminosity phase of the LHC (HL-LHC) expected 
 to begin in 2027\, so that the system can cope with the HL-LHC increased r
 adiation levels and out-of-time pileup and can meet the requirements of a 
 1 MHz trigger. \nPMT signals from every TileCal cell will be digitized and
  sent directly to the back-end electronics\, where the signals are reconst
 ructed\, stored\, and sent to the first level of trigger at a rate of 40 M
 Hz. This will provide better precision of the calorimeter signals used by 
 the trigger system and will allow the development of more complex trigger 
 algorithms. \n \nThe TileCal upgrade program has included extensive R&D an
 d test beam studies. A Demonstrator module with reverse compatibility with
  the existing system was inserted in ATLAS in August 2019 for testing in a
 ctual detector conditions. \nThe main features of the TileCal upgrade prog
 ram and results obtained from the Demonstrator tests will be discussed.\n\
 nhttps://indico.particle.mephi.ru/event/35/contributions/2303/
LOCATION:Zoom Facilities
URL:https://indico.particle.mephi.ru/event/35/contributions/2303/
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