Impedance effects on beam stability

In 2012, attempts to increase the bunch intensity, decrease the emittance and reduce the collimators gaps in the LHC, will potentially make the detrimental effects due to the machine impedance more critical. Extrapolating the data accumulated in 2010 and 2011, in several foreseen scenarios, the head...

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Detalles Bibliográficos
Autores principales: Mounet, N, Bruce, R, Buffat, X, Herr, W, Métral, E, Rumolo, G, Salvant, B
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1975498
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author Mounet, N
Bruce, R
Buffat, X
Herr, W
Métral, E
Rumolo, G
Salvant, B
author_facet Mounet, N
Bruce, R
Buffat, X
Herr, W
Métral, E
Rumolo, G
Salvant, B
author_sort Mounet, N
collection CERN
description In 2012, attempts to increase the bunch intensity, decrease the emittance and reduce the collimators gaps in the LHC, will potentially make the detrimental effects due to the machine impedance more critical. Extrapolating the data accumulated in 2010 and 2011, in several foreseen scenarios, the headtail modes at top energy will require an increase of the current in the octupoles installed in the LHC. In the worst case, instead of around 200 A in the defocusing octupoles and − 200 A in the focusing ones as at the end of the 2011 physics run, the octupoles’ current will have to be increased to around ± 450 A.
id cern-1975498
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-19754982022-08-10T20:23:24Zhttp://cds.cern.ch/record/1975498engMounet, NBruce, RBuffat, XHerr, WMétral, ERumolo, GSalvant, BImpedance effects on beam stabilityAccelerators and Storage RingsIn 2012, attempts to increase the bunch intensity, decrease the emittance and reduce the collimators gaps in the LHC, will potentially make the detrimental effects due to the machine impedance more critical. Extrapolating the data accumulated in 2010 and 2011, in several foreseen scenarios, the headtail modes at top energy will require an increase of the current in the octupoles installed in the LHC. In the worst case, instead of around 200 A in the defocusing octupoles and − 200 A in the focusing ones as at the end of the 2011 physics run, the octupoles’ current will have to be increased to around ± 450 A.oai:cds.cern.ch:19754982012
spellingShingle Accelerators and Storage Rings
Mounet, N
Bruce, R
Buffat, X
Herr, W
Métral, E
Rumolo, G
Salvant, B
Impedance effects on beam stability
title Impedance effects on beam stability
title_full Impedance effects on beam stability
title_fullStr Impedance effects on beam stability
title_full_unstemmed Impedance effects on beam stability
title_short Impedance effects on beam stability
title_sort impedance effects on beam stability
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1975498
work_keys_str_mv AT mounetn impedanceeffectsonbeamstability
AT brucer impedanceeffectsonbeamstability
AT buffatx impedanceeffectsonbeamstability
AT herrw impedanceeffectsonbeamstability
AT metrale impedanceeffectsonbeamstability
AT rumolog impedanceeffectsonbeamstability
AT salvantb impedanceeffectsonbeamstability

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