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SUMMARY:Upgrade of the ATLAS hadronic Tile calorimeter for the High lumino
 sity LHC
DTSTART;VALUE=DATE-TIME:20170301T032500Z
DTEND;VALUE=DATE-TIME:20170301T034500Z
DTSTAMP;VALUE=DATE-TIME:20260711T232752Z
UID:indico-contribution-1711@indico.inp.nsk.su
DESCRIPTION:Speakers: Alexander Solodkov (IHEP Protvino)\nThe Tile Calorim
 eter (TileCal) is the hadronic calorimeter of ATLAS covering the central r
 egion of the ATLAS experiment. TileCal is a sampling calorimeter with stee
 l as absorber and scintillators as active medium. The scintillators are re
 ad-out by wavelength shifting fibers coupled to photomultiplier tubes (PMT
 ). The analogue signals from the PMTs are amplified\, shaped and digitized
  by sampling the signal every 25 ns.\n\nThe High Luminosity Large Hadron C
 ollider (HL-LHC) will have a peak luminosity of 5x10$^{34}$cm$^{-2}$s$^{-1
 }$\, five times higher than the design luminosity of the LHC.\nTileCal wil
 l undergo a major replacement of its on- and off-detector electronics for 
 the high luminosity programme of the LHC starting in 2026. All signals wil
 l be digitized and then transferred directly to the off-detector electroni
 cs\, where the signals will be reconstructed\, stored\, and sent to the fi
 rst level of trigger at a rate of 40 MHz. This will provide better precisi
 on of the calorimeter signals used by the trigger system and will allow th
 e development of more complex trigger algorithms. Changes to the electroni
 cs will also contribute to the reliability and redundancy of the system.\n
 \nThree different frontend options are presently being investigated for th
 e upgrade and a final solution will be chosen after extensive laboratory a
 nd test beam studies that are in progress. A hybrid demonstrator module wa
 s developed using the new electronics while conserving compatibility with 
 the current system. The demonstrator undergoes extensive testing and will 
 be installed during one of the next winter maintenance period.\n\nhttps://
 indico.inp.nsk.su/event/8/contributions/1711/
LOCATION:
URL:https://indico.inp.nsk.su/event/8/contributions/1711/
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