LHC Emittance preservation during the 2012 run.

Emittance measurements through the 2012 LHC proton cycle examined possible major sources for the large blow-up through the LHC cycle already seen in 2011. The behavior of single bunch and 50 ns beams from LHC injection to collisions has been investigated. Accuracy and limitations of the LHC transver...

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Detalles Bibliográficos
Autores principales: Kuhn, M, Arduini, G, Emery, J, Guerrero, A, Hofle, W, Kain, V, Roncarolo, F, Sapinski, M, Schaumann, M, Steinhagen, R
Lenguaje:eng
Publicado: CERN 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2302436
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author Kuhn, M
Arduini, G
Emery, J
Guerrero, A
Hofle, W
Kain, V
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
author_facet Kuhn, M
Arduini, G
Emery, J
Guerrero, A
Hofle, W
Kain, V
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
author_sort Kuhn, M
collection CERN
description Emittance measurements through the 2012 LHC proton cycle examined possible major sources for the large blow-up through the LHC cycle already seen in 2011. The behavior of single bunch and 50 ns beams from LHC injection to collisions has been investigated. Accuracy and limitations of the LHC transverse profile monitors will be discussed. The effect of 50 Hz noise on the emittance growth and the influence of different transverse damper gains are presented. Intra beam scattering is one of the major sources of blow-up in the horizontal plane at injection. RF batch-by-batch blow-up has been put into operation towards the end of the year to counteract this effect. The impact of these measures on specific luminosity will be presented. The creation of tails through the LHC cycle will also be briefly discussed and an outlook for future LHC upgrade scenarios with low emittance beams will be given.
id oai-inspirehep.net-1650715
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
publisher CERN
record_format invenio
spelling oai-inspirehep.net-16507152019-09-30T06:29:59Zhttp://cds.cern.ch/record/2302436engKuhn, MArduini, GEmery, JGuerrero, AHofle, WKain, VRoncarolo, FSapinski, MSchaumann, MSteinhagen, RLHC Emittance preservation during the 2012 run.Accelerators and Storage RingsEmittance measurements through the 2012 LHC proton cycle examined possible major sources for the large blow-up through the LHC cycle already seen in 2011. The behavior of single bunch and 50 ns beams from LHC injection to collisions has been investigated. Accuracy and limitations of the LHC transverse profile monitors will be discussed. The effect of 50 Hz noise on the emittance growth and the influence of different transverse damper gains are presented. Intra beam scattering is one of the major sources of blow-up in the horizontal plane at injection. RF batch-by-batch blow-up has been put into operation towards the end of the year to counteract this effect. The impact of these measures on specific luminosity will be presented. The creation of tails through the LHC cycle will also be briefly discussed and an outlook for future LHC upgrade scenarios with low emittance beams will be given.CERNoai:inspirehep.net:16507152012
spellingShingle Accelerators and Storage Rings
Kuhn, M
Arduini, G
Emery, J
Guerrero, A
Hofle, W
Kain, V
Roncarolo, F
Sapinski, M
Schaumann, M
Steinhagen, R
LHC Emittance preservation during the 2012 run.
title LHC Emittance preservation during the 2012 run.
title_full LHC Emittance preservation during the 2012 run.
title_fullStr LHC Emittance preservation during the 2012 run.
title_full_unstemmed LHC Emittance preservation during the 2012 run.
title_short LHC Emittance preservation during the 2012 run.
title_sort lhc emittance preservation during the 2012 run.
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2302436
work_keys_str_mv AT kuhnm lhcemittancepreservationduringthe2012run
AT arduinig lhcemittancepreservationduringthe2012run
AT emeryj lhcemittancepreservationduringthe2012run
AT guerreroa lhcemittancepreservationduringthe2012run
AT hoflew lhcemittancepreservationduringthe2012run
AT kainv lhcemittancepreservationduringthe2012run
AT roncarolof lhcemittancepreservationduringthe2012run
AT sapinskim lhcemittancepreservationduringthe2012run
AT schaumannm lhcemittancepreservationduringthe2012run
AT steinhagenr lhcemittancepreservationduringthe2012run

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