Causes and solutions for Emittance Blow-up during the LHC cycle

Emittance measurements during the run 2011 indicated a blow-up of 20 % to 30 % from LHC injection to collisions. At the LHC design stage the total allowed emittance increase through the cycle was set to 7 %. One of the goals of the 2012 LHC run is therefore to understand and counteract the blow-up....

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Detalles Bibliográficos
Autores principales: Kuhn, M, Arduini, G, Holzer, BJ, Jowett, JM, Kain, V, Roncarolo, F, Schaumann, M, Versteegen, R, Wenninger, J
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1459471
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author Kuhn, M
Arduini, G
Holzer, BJ
Jowett, JM
Kain, V
Roncarolo, F
Schaumann, M
Versteegen, R
Wenninger, J
author_facet Kuhn, M
Arduini, G
Holzer, BJ
Jowett, JM
Kain, V
Roncarolo, F
Schaumann, M
Versteegen, R
Wenninger, J
author_sort Kuhn, M
collection CERN
description Emittance measurements during the run 2011 indicated a blow-up of 20 % to 30 % from LHC injection to collisions. At the LHC design stage the total allowed emittance increase through the cycle was set to 7 %. One of the goals of the 2012 LHC run is therefore to understand and counteract the blow-up. Emittance growth measurements through the LHC cycle along with correlations with possible sources are presented in this paper. Solutions are proposed where possible. The emittance determination accuracy relies on the knowledge of the beam optics and on the present performance of the transverse profile monitors. Possible improvements of the diagnostics and of the related data analysis are also discussed.
id cern-1459471
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14594712022-08-17T13:32:50Zhttp://cds.cern.ch/record/1459471engKuhn, MArduini, GHolzer, BJJowett, JMKain, VRoncarolo, FSchaumann, MVersteegen, RWenninger, JCauses and solutions for Emittance Blow-up during the LHC cycleAccelerators and Storage RingsEmittance measurements during the run 2011 indicated a blow-up of 20 % to 30 % from LHC injection to collisions. At the LHC design stage the total allowed emittance increase through the cycle was set to 7 %. One of the goals of the 2012 LHC run is therefore to understand and counteract the blow-up. Emittance growth measurements through the LHC cycle along with correlations with possible sources are presented in this paper. Solutions are proposed where possible. The emittance determination accuracy relies on the knowledge of the beam optics and on the present performance of the transverse profile monitors. Possible improvements of the diagnostics and of the related data analysis are also discussed.CERN-ATS-2012-105oai:cds.cern.ch:14594712012-05-20
spellingShingle Accelerators and Storage Rings
Kuhn, M
Arduini, G
Holzer, BJ
Jowett, JM
Kain, V
Roncarolo, F
Schaumann, M
Versteegen, R
Wenninger, J
Causes and solutions for Emittance Blow-up during the LHC cycle
title Causes and solutions for Emittance Blow-up during the LHC cycle
title_full Causes and solutions for Emittance Blow-up during the LHC cycle
title_fullStr Causes and solutions for Emittance Blow-up during the LHC cycle
title_full_unstemmed Causes and solutions for Emittance Blow-up during the LHC cycle
title_short Causes and solutions for Emittance Blow-up during the LHC cycle
title_sort causes and solutions for emittance blow-up during the lhc cycle
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1459471
work_keys_str_mv AT kuhnm causesandsolutionsforemittanceblowupduringthelhccycle
AT arduinig causesandsolutionsforemittanceblowupduringthelhccycle
AT holzerbj causesandsolutionsforemittanceblowupduringthelhccycle
AT jowettjm causesandsolutionsforemittanceblowupduringthelhccycle
AT kainv causesandsolutionsforemittanceblowupduringthelhccycle
AT roncarolof causesandsolutionsforemittanceblowupduringthelhccycle
AT schaumannm causesandsolutionsforemittanceblowupduringthelhccycle
AT versteegenr causesandsolutionsforemittanceblowupduringthelhccycle
AT wenningerj causesandsolutionsforemittanceblowupduringthelhccycle

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