Validation of Off-momentum Cleaning Performance of the LHC Collimation System

The LHC collimation system is designed to provide effective cleaning against losses coming from off-momentum particles, either due to un-captured beam or to an unexpected RF frequency change. For this reason the LHC is equipped with a hierarchy of collimators in IR3: primary, secondary and absorber...

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Detalles Bibliográficos
Autores principales: Salvachua, Belen, Baudrenghien, Philippe, Bruce, Roderik, Garcia, Hector, Hermes, Pascal, Jackson, Stephen, Jaussi, Michael, Kwee-Hinzmann, Regina, Mereghetti, Alessio, Mirarchi, Daniele, Redaelli, Stefano, Timko, Helga, Valentino, Gianluca, Valloni, Alessandra
Lenguaje:eng
Publicado: 2016
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2016-WEPMW007
http://cds.cern.ch/record/2207405
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author Salvachua, Belen
Baudrenghien, Philippe
Bruce, Roderik
Garcia, Hector
Hermes, Pascal
Jackson, Stephen
Jaussi, Michael
Kwee-Hinzmann, Regina
Mereghetti, Alessio
Mirarchi, Daniele
Redaelli, Stefano
Timko, Helga
Valentino, Gianluca
Valloni, Alessandra
author_facet Salvachua, Belen
Baudrenghien, Philippe
Bruce, Roderik
Garcia, Hector
Hermes, Pascal
Jackson, Stephen
Jaussi, Michael
Kwee-Hinzmann, Regina
Mereghetti, Alessio
Mirarchi, Daniele
Redaelli, Stefano
Timko, Helga
Valentino, Gianluca
Valloni, Alessandra
author_sort Salvachua, Belen
collection CERN
description The LHC collimation system is designed to provide effective cleaning against losses coming from off-momentum particles, either due to un-captured beam or to an unexpected RF frequency change. For this reason the LHC is equipped with a hierarchy of collimators in IR3: primary, secondary and absorber collimators. After every collimator alignment or change of machine configuration the off-momentum cleaning efficiency is validated with loss maps at low intensity. We describe here the improved technique used in 2015 to generate such loss maps without completely dumping the beam into the collimators. The achieved performance of the collimation system for momentum cleaning is reviewed.
id oai-inspirehep.net-1470219
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling oai-inspirehep.net-14702192022-08-10T12:48:11Zdoi:10.18429/JACoW-IPAC2016-WEPMW007http://cds.cern.ch/record/2207405engSalvachua, BelenBaudrenghien, PhilippeBruce, RoderikGarcia, HectorHermes, PascalJackson, StephenJaussi, MichaelKwee-Hinzmann, ReginaMereghetti, AlessioMirarchi, DanieleRedaelli, StefanoTimko, HelgaValentino, GianlucaValloni, AlessandraValidation of Off-momentum Cleaning Performance of the LHC Collimation SystemAccelerators and Storage RingsThe LHC collimation system is designed to provide effective cleaning against losses coming from off-momentum particles, either due to un-captured beam or to an unexpected RF frequency change. For this reason the LHC is equipped with a hierarchy of collimators in IR3: primary, secondary and absorber collimators. After every collimator alignment or change of machine configuration the off-momentum cleaning efficiency is validated with loss maps at low intensity. We describe here the improved technique used in 2015 to generate such loss maps without completely dumping the beam into the collimators. The achieved performance of the collimation system for momentum cleaning is reviewed.CERN-ACC-2016-220oai:inspirehep.net:14702192016
spellingShingle Accelerators and Storage Rings
Salvachua, Belen
Baudrenghien, Philippe
Bruce, Roderik
Garcia, Hector
Hermes, Pascal
Jackson, Stephen
Jaussi, Michael
Kwee-Hinzmann, Regina
Mereghetti, Alessio
Mirarchi, Daniele
Redaelli, Stefano
Timko, Helga
Valentino, Gianluca
Valloni, Alessandra
Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title_full Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title_fullStr Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title_full_unstemmed Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title_short Validation of Off-momentum Cleaning Performance of the LHC Collimation System
title_sort validation of off-momentum cleaning performance of the lhc collimation system
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2016-WEPMW007
http://cds.cern.ch/record/2207405
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