Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run

About 30 % of the potential luminosity performance is lost through the different phases of the LHC cycle, mainly due to transverse emittance blow-up. Measuring the emittance growth is a difficult task with high intensity beams and changing energies. Improvements of the LHC transverse profile instrum...

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Detalles Bibliográficos
Autores principales: Kuhn, M, Arduini, G, Baudrenghien, P, Emery, J, Guerrero, A, Hofle, W, Kain, V, Lamont, M, Mastoridis, T, Roncarolo, F, Sapinski, M, Schaumann, M, Steinhagen, R, Trad, G, Valuch, D
Lenguaje:eng
Publicado: 2013
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1567254
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author Kuhn, M
Arduini, G
Baudrenghien, P
Emery, J
Guerrero, A
Hofle, W
Kain, V
Lamont, M
Mastoridis, T
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
Trad, G
Valuch, D
author_facet Kuhn, M
Arduini, G
Baudrenghien, P
Emery, J
Guerrero, A
Hofle, W
Kain, V
Lamont, M
Mastoridis, T
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
Trad, G
Valuch, D
author_sort Kuhn, M
collection CERN
description About 30 % of the potential luminosity performance is lost through the different phases of the LHC cycle, mainly due to transverse emittance blow-up. Measuring the emittance growth is a difficult task with high intensity beams and changing energies. Improvements of the LHC transverse profile instrumentation helped to study various effects. A breakdown of the growth through the different phases of the LHC cycle is given as well as a comparison with the data from the LHC experiments for transverse beam size. In 2012 a number of possible sources and remedies have been studied. Among these are intra beam scattering, 50 Hz noise and the effect of the transverse damper gain. The results of the investigations are summarized in this paper. Requirements for transverse profile instrumentation for post LHC long shutdown operation to finally tackle the emittance growth are given as well.
id cern-1567254
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15672542019-09-30T06:29:59Zhttp://cds.cern.ch/record/1567254engKuhn, MArduini, GBaudrenghien, PEmery, JGuerrero, AHofle, WKain, VLamont, MMastoridis, TRoncarolo, FSapinski, MSchaumann, MSteinhagen, RTrad, GValuch, DInvestigations of the LHC Emittance Blow-Up During the 2012 Proton RunAccelerators and Storage RingsAbout 30 % of the potential luminosity performance is lost through the different phases of the LHC cycle, mainly due to transverse emittance blow-up. Measuring the emittance growth is a difficult task with high intensity beams and changing energies. Improvements of the LHC transverse profile instrumentation helped to study various effects. A breakdown of the growth through the different phases of the LHC cycle is given as well as a comparison with the data from the LHC experiments for transverse beam size. In 2012 a number of possible sources and remedies have been studied. Among these are intra beam scattering, 50 Hz noise and the effect of the transverse damper gain. The results of the investigations are summarized in this paper. Requirements for transverse profile instrumentation for post LHC long shutdown operation to finally tackle the emittance growth are given as well.CERN-ACC-2013-0030oai:cds.cern.ch:15672542013-05-12
spellingShingle Accelerators and Storage Rings
Kuhn, M
Arduini, G
Baudrenghien, P
Emery, J
Guerrero, A
Hofle, W
Kain, V
Lamont, M
Mastoridis, T
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
Trad, G
Valuch, D
Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title_full Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title_fullStr Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title_full_unstemmed Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title_short Investigations of the LHC Emittance Blow-Up During the 2012 Proton Run
title_sort investigations of the lhc emittance blow-up during the 2012 proton run
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1567254
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