Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade

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TileCal, the central section of the hadronic calorimeter of the ATLAS experiment, is read out by 9,852 photomultipliers. Earlier findings in the photomultiplier performance show a degradation in response due to the integrated anode charge, with projected loss exceeding 25\% for 8\% of the photomulti...

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Autor principal: Di Gregorio, Giulia
Lenguaje:eng
Publicado: 2021
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1109/NSS/MIC44867.2021.9875660
http://cds.cern.ch/record/2798642
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author Di Gregorio, Giulia
author_facet Di Gregorio, Giulia
author_sort Di Gregorio, Giulia
collection CERN
description TileCal, the central section of the hadronic calorimeter of the ATLAS experiment, is read out by 9,852 photomultipliers. Earlier findings in the photomultiplier performance show a degradation in response due to the integrated anode charge, with projected loss exceeding 25\% for 8\% of the photomultipliers that will integrate an anode charge of 600 C, expected in the High-Luminosity Large Hadron Collider program. These photomultipliers will be replaced with a newer version. In the Pisa laboratory, a local test bench is being used to study the performance of the new photomultipliers after integration of an anode charge exceeding 200 C. Preliminary results obtained in the Pisa laboratory are shown.
id cern-2798642
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27986422022-12-12T19:43:46Zdoi:10.1109/NSS/MIC44867.2021.9875660http://cds.cern.ch/record/2798642engDi Gregorio, GiuliaLong term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgradeParticle Physics - ExperimentTileCal, the central section of the hadronic calorimeter of the ATLAS experiment, is read out by 9,852 photomultipliers. Earlier findings in the photomultiplier performance show a degradation in response due to the integrated anode charge, with projected loss exceeding 25\% for 8\% of the photomultipliers that will integrate an anode charge of 600 C, expected in the High-Luminosity Large Hadron Collider program. These photomultipliers will be replaced with a newer version. In the Pisa laboratory, a local test bench is being used to study the performance of the new photomultipliers after integration of an anode charge exceeding 200 C. Preliminary results obtained in the Pisa laboratory are shown.ATL-TILECAL-PROC-2021-018oai:cds.cern.ch:27986422021-12-21
spellingShingle Particle Physics - Experiment
Di Gregorio, Giulia
Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title_full Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title_fullStr Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title_full_unstemmed Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title_short Long term aging test of the new PMTs for the HL-LHC ATLAS hadron calorimeter upgrade
title_sort long term aging test of the new pmts for the hl-lhc atlas hadron calorimeter upgrade
topic Particle Physics - Experiment
url https://dx.doi.org/10.1109/NSS/MIC44867.2021.9875660
http://cds.cern.ch/record/2798642
work_keys_str_mv AT digregoriogiulia longtermagingtestofthenewpmtsforthehllhcatlashadroncalorimeterupgrade

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