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Performance and Upgrade of the ATLAS Tile Calorimeter

The Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central region of the ATLAS experiment. TileCal is a sampling calorimeter with steel as absorber and scintillators as active medium. The scintillators are read-out by wavelength shifting fibers coupled to photomultiplier tubes (...

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Autor principal: Solodkov, Alexander
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.1142/9789811233913_0048
http://cds.cern.ch/record/2706129
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author Solodkov, Alexander
author_facet Solodkov, Alexander
author_sort Solodkov, Alexander
collection CERN
description The Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central region of the ATLAS experiment. TileCal is a sampling calorimeter with steel as absorber and scintillators as active medium. The scintillators are read-out by wavelength shifting fibers coupled to photomultiplier tubes (PMTs). The calorimeter response and its readout electronics is monitored to better than 1\% using radioactive source, laser and charge injection systems. The performance of the calorimeter has been measured and monitored using calibration data, cosmic ray muons and the large sample of proton-proton collisions acquired in 2009-2018 during LHC Run-1 and Run-2. The High-Luminosity phase of LHC (HL-LHC) expected to begin in year 2027 requires new electronics to meet the requirements of a 1 MHz trigger, higher ambient radiation, and for better performance under high pileup. Both the on- and off-detector TileCal electronics will be replaced during the shutdown of 2025-2026. PMT signals from every TileCal cell will be digitized and sent directly to the back-end electronics, where the signals are reconstructed, stored, and sent to the first level of trigger at a rate of 40 MHz. New electronics prototypes were tested in labs as well as in beam tests. Results of the calorimeter calibration and performance during LHC Run-2 are summarized, the main features and beam test results obtained with the new front-end electronics are also presented.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2020
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spelling cern-27061292022-08-16T08:46:24Zdoi:10.1142/9789811233913_0048http://cds.cern.ch/record/2706129engSolodkov, AlexanderPerformance and Upgrade of the ATLAS Tile CalorimeterParticle Physics - ExperimentThe Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central region of the ATLAS experiment. TileCal is a sampling calorimeter with steel as absorber and scintillators as active medium. The scintillators are read-out by wavelength shifting fibers coupled to photomultiplier tubes (PMTs). The calorimeter response and its readout electronics is monitored to better than 1\% using radioactive source, laser and charge injection systems. The performance of the calorimeter has been measured and monitored using calibration data, cosmic ray muons and the large sample of proton-proton collisions acquired in 2009-2018 during LHC Run-1 and Run-2. The High-Luminosity phase of LHC (HL-LHC) expected to begin in year 2027 requires new electronics to meet the requirements of a 1 MHz trigger, higher ambient radiation, and for better performance under high pileup. Both the on- and off-detector TileCal electronics will be replaced during the shutdown of 2025-2026. PMT signals from every TileCal cell will be digitized and sent directly to the back-end electronics, where the signals are reconstructed, stored, and sent to the first level of trigger at a rate of 40 MHz. New electronics prototypes were tested in labs as well as in beam tests. Results of the calorimeter calibration and performance during LHC Run-2 are summarized, the main features and beam test results obtained with the new front-end electronics are also presented.ATL-TILECAL-PROC-2020-001oai:cds.cern.ch:27061292020-01-10
spellingShingle Particle Physics - Experiment
Solodkov, Alexander
Performance and Upgrade of the ATLAS Tile Calorimeter
title Performance and Upgrade of the ATLAS Tile Calorimeter
title_full Performance and Upgrade of the ATLAS Tile Calorimeter
title_fullStr Performance and Upgrade of the ATLAS Tile Calorimeter
title_full_unstemmed Performance and Upgrade of the ATLAS Tile Calorimeter
title_short Performance and Upgrade of the ATLAS Tile Calorimeter
title_sort performance and upgrade of the atlas tile calorimeter
topic Particle Physics - Experiment
url https://dx.doi.org/10.1142/9789811233913_0048
http://cds.cern.ch/record/2706129
work_keys_str_mv AT solodkovalexander performanceandupgradeoftheatlastilecalorimeter