Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison

Continuous high levels of radiation in the CMS Drift Tubs can be the cause of early detector ageing. For this reason, in view of High Luminosity LHC, several measures have been taken to protect the detector and keep the background under control. The last and most effective intervention was the insta...

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Autor principal: CMS Collaboration
Lenguaje:eng
Publicado: 2023
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/2861531
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author CMS Collaboration
author_facet CMS Collaboration
author_sort CMS Collaboration
collection CERN
description Continuous high levels of radiation in the CMS Drift Tubs can be the cause of early detector ageing. For this reason, in view of High Luminosity LHC, several measures have been taken to protect the detector and keep the background under control. The last and most effective intervention was the installation, during Long Shut down 2, of dedicated shields over the top external DT chambers, aiming at reducing the rates of thermal neutrons coming from the empty space above the detector. This note presents a comparison of rates measured before and after such intervention, along with results of monitoring detector efficiency to spot any evidence of ageing.
id cern-2861531
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
record_format invenio
spelling cern-28615312023-06-13T18:24:26Zhttp://cds.cern.ch/record/2861531engCMS CollaborationBackground in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparisonDetectors and Experimental TechniquesContinuous high levels of radiation in the CMS Drift Tubs can be the cause of early detector ageing. For this reason, in view of High Luminosity LHC, several measures have been taken to protect the detector and keep the background under control. The last and most effective intervention was the installation, during Long Shut down 2, of dedicated shields over the top external DT chambers, aiming at reducing the rates of thermal neutrons coming from the empty space above the detector. This note presents a comparison of rates measured before and after such intervention, along with results of monitoring detector efficiency to spot any evidence of ageing.CMS-DP-2023-033CERN-CMS-DP-2023-033oai:cds.cern.ch:28615312023-06-06
spellingShingle Detectors and Experimental Techniques
CMS Collaboration
Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title_full Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title_fullStr Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title_full_unstemmed Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title_short Background in the CMS Drift Tubes and detector ageing monitoring: Run 3 to Run 2 comparison
title_sort background in the cms drift tubes and detector ageing monitoring: run 3 to run 2 comparison
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/2861531
work_keys_str_mv AT cmscollaboration backgroundinthecmsdrifttubesanddetectorageingmonitoringrun3torun2comparison

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