Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators

The betatron collimators in IR7 constitute the backbone of the collimation system of the LHC. A fraction of the secondary halo protons or heavy-ion fragments, scattered out of the primary collimator, is not captured by the secondary collimators but hits cold magnets in the IR7 dispersion suppressor...

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Detalles Bibliográficos
Autores principales: Hermes, Pascal Dominik, Bruce, Roderik, Jowett, John, Redaelli, Stefano
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2114380
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author Hermes, Pascal Dominik
Bruce, Roderik
Jowett, John
Redaelli, Stefano
author_facet Hermes, Pascal Dominik
Bruce, Roderik
Jowett, John
Redaelli, Stefano
author_sort Hermes, Pascal Dominik
collection CERN
description The betatron collimators in IR7 constitute the backbone of the collimation system of the LHC. A fraction of the secondary halo protons or heavy-ion fragments, scattered out of the primary collimator, is not captured by the secondary collimators but hits cold magnets in the IR7 dispersion suppressor (DS) where the dispersion starts to increase. A possible approach to reduce these losses is based on the installation of additional collimators in the DS region. In this paper, simulations of the cleaning efficiency for Pb82+ ions are used to evaluate the effect of the additional collimators. The results indicate a significant improvement of the heavyion cleaning efficiency.
id cern-2114380
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-21143802022-08-10T12:54:27Zhttp://cds.cern.ch/record/2114380engHermes, Pascal DominikBruce, RoderikJowett, JohnRedaelli, StefanoBetatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor CollimatorsAccelerators and Storage RingsThe betatron collimators in IR7 constitute the backbone of the collimation system of the LHC. A fraction of the secondary halo protons or heavy-ion fragments, scattered out of the primary collimator, is not captured by the secondary collimators but hits cold magnets in the IR7 dispersion suppressor (DS) where the dispersion starts to increase. A possible approach to reduce these losses is based on the installation of additional collimators in the DS region. In this paper, simulations of the cleaning efficiency for Pb82+ ions are used to evaluate the effect of the additional collimators. The results indicate a significant improvement of the heavyion cleaning efficiency.CERN-ACC-2015-0193oai:cds.cern.ch:21143802015-05-03
spellingShingle Accelerators and Storage Rings
Hermes, Pascal Dominik
Bruce, Roderik
Jowett, John
Redaelli, Stefano
Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title_full Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title_fullStr Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title_full_unstemmed Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title_short Betatron Cleaning for Heavy Ion Beams with IR7 Dispersion Suppressor Collimators
title_sort betatron cleaning for heavy ion beams with ir7 dispersion suppressor collimators
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2114380
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AT bruceroderik betatroncleaningforheavyionbeamswithir7dispersionsuppressorcollimators
AT jowettjohn betatroncleaningforheavyionbeamswithir7dispersionsuppressorcollimators
AT redaellistefano betatroncleaningforheavyionbeamswithir7dispersionsuppressorcollimators

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