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Calibration and performance of the ATLAS Tile Calorimeter

The Tile Calorimeter (TileCal) of the ATLAS experiment at the LHC is the central hadronic calorimeter designed for the reconstruction of hadrons, jets, tau-particles and missing transverse energy. This sampling calorimeter uses steel plates as absorber and scintillating tiles as active medium. The l...

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Autor principal: Petukhova, Krystsina
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2644796
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author Petukhova, Krystsina
author_facet Petukhova, Krystsina
author_sort Petukhova, Krystsina
collection CERN
description The Tile Calorimeter (TileCal) of the ATLAS experiment at the LHC is the central hadronic calorimeter designed for the reconstruction of hadrons, jets, tau-particles and missing transverse energy. This sampling calorimeter uses steel plates as absorber and scintillating tiles as active medium. The light produced by the passage of charged particles is transmitted by wavelength shifting fibres to photomultiplier tubes (PMTs). The readout is segmented into about 5000 cells, each of them being read out by two PMTs in parallel. The TileCal calibration system comprises Cesium radioactive sources, laser, charge injection elements, and an integrator based readout system. Combined information from all systems allows to monitor and to equalize the calorimeter response at each stage of the signal evolution, from scintillation light to digitization. The performance of the calorimeter has been established with cosmic ray muons and the large sample of the proton-proton collisions. The response of high momentum isolated muons is used to study the energy response at the electromagnetic scale, isolated hadrons are used as a probe of the hadronic response. The calorimeter time resolution is studied with multijet events. A description of the different TileCal calibration systems and the results on the calorimeter performance during the LHC Run 2 will be presented.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
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spelling cern-26447962019-09-30T06:29:59Zhttp://cds.cern.ch/record/2644796engPetukhova, KrystsinaCalibration and performance of the ATLAS Tile CalorimeterParticle Physics - ExperimentThe Tile Calorimeter (TileCal) of the ATLAS experiment at the LHC is the central hadronic calorimeter designed for the reconstruction of hadrons, jets, tau-particles and missing transverse energy. This sampling calorimeter uses steel plates as absorber and scintillating tiles as active medium. The light produced by the passage of charged particles is transmitted by wavelength shifting fibres to photomultiplier tubes (PMTs). The readout is segmented into about 5000 cells, each of them being read out by two PMTs in parallel. The TileCal calibration system comprises Cesium radioactive sources, laser, charge injection elements, and an integrator based readout system. Combined information from all systems allows to monitor and to equalize the calorimeter response at each stage of the signal evolution, from scintillation light to digitization. The performance of the calorimeter has been established with cosmic ray muons and the large sample of the proton-proton collisions. The response of high momentum isolated muons is used to study the energy response at the electromagnetic scale, isolated hadrons are used as a probe of the hadronic response. The calorimeter time resolution is studied with multijet events. A description of the different TileCal calibration systems and the results on the calorimeter performance during the LHC Run 2 will be presented.ATL-TILECAL-SLIDE-2018-969oai:cds.cern.ch:26447962018-10-24
spellingShingle Particle Physics - Experiment
Petukhova, Krystsina
Calibration and performance of the ATLAS Tile Calorimeter
title Calibration and performance of the ATLAS Tile Calorimeter
title_full Calibration and performance of the ATLAS Tile Calorimeter
title_fullStr Calibration and performance of the ATLAS Tile Calorimeter
title_full_unstemmed Calibration and performance of the ATLAS Tile Calorimeter
title_short Calibration and performance of the ATLAS Tile Calorimeter
title_sort calibration and performance of the atlas tile calorimeter
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2644796
work_keys_str_mv AT petukhovakrystsina calibrationandperformanceoftheatlastilecalorimeter