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Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC

The CERN LHC collimation system is designed to perform momentum and betatron cleaning in different insertions, respectively IR3 and IR7. The insertions are not perfectly decoupled because the dispersion in IR7 is not null and the beta function in IR3 is not zero. The detailed sharing of losses betwe...

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Autores principales: Salvachua, B, Bruce, R, Brugger, M, Cerutti, F, Redaelli, S
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1574597
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author Salvachua, B
Bruce, R
Brugger, M
Cerutti, F
Redaelli, S
author_facet Salvachua, B
Bruce, R
Brugger, M
Cerutti, F
Redaelli, S
author_sort Salvachua, B
collection CERN
description The CERN LHC collimation system is designed to perform momentum and betatron cleaning in different insertions, respectively IR3 and IR7. The insertions are not perfectly decoupled because the dispersion in IR7 is not null and the beta function in IR3 is not zero. The detailed sharing of losses between the two insertions depends on the relative collimator settings as observed by the change between 2011 and 2012 LHC operation. In this report, using the beam loss measurements at the primary collimators of IR3 and IR7, the total BLM losses in the two insertions are calculated and compared to each other. These studies are also used to quantify the total dose to warm magnets in those IRs with the aim to understand better their lifetime and the implications of the radiation to electronics. This will be of particular importance in view of LHC operating at nominal performance after several years of operation.
id cern-1574597
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-15745972019-09-30T06:29:59Zhttp://cds.cern.ch/record/1574597engSalvachua, BBruce, RBrugger, MCerutti, FRedaelli, SEstimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHCAccelerators and Storage RingsThe CERN LHC collimation system is designed to perform momentum and betatron cleaning in different insertions, respectively IR3 and IR7. The insertions are not perfectly decoupled because the dispersion in IR7 is not null and the beta function in IR3 is not zero. The detailed sharing of losses between the two insertions depends on the relative collimator settings as observed by the change between 2011 and 2012 LHC operation. In this report, using the beam loss measurements at the primary collimators of IR3 and IR7, the total BLM losses in the two insertions are calculated and compared to each other. These studies are also used to quantify the total dose to warm magnets in those IRs with the aim to understand better their lifetime and the implications of the radiation to electronics. This will be of particular importance in view of LHC operating at nominal performance after several years of operation.CERN-ACC-2013-0076oai:cds.cern.ch:15745972013-05-12
spellingShingle Accelerators and Storage Rings
Salvachua, B
Bruce, R
Brugger, M
Cerutti, F
Redaelli, S
Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title_full Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title_fullStr Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title_full_unstemmed Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title_short Estimate of Warm Magnets Lifetime in the Betatron and Momentum Cleaning Insertions of the LHC
title_sort estimate of warm magnets lifetime in the betatron and momentum cleaning insertions of the lhc
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1574597
work_keys_str_mv AT salvachuab estimateofwarmmagnetslifetimeinthebetatronandmomentumcleaninginsertionsofthelhc
AT brucer estimateofwarmmagnetslifetimeinthebetatronandmomentumcleaninginsertionsofthelhc
AT bruggerm estimateofwarmmagnetslifetimeinthebetatronandmomentumcleaninginsertionsofthelhc
AT ceruttif estimateofwarmmagnetslifetimeinthebetatronandmomentumcleaninginsertionsofthelhc
AT redaellis estimateofwarmmagnetslifetimeinthebetatronandmomentumcleaninginsertionsofthelhc