Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC

The study reports on dedicated measurements made with a single nominal bunch in the LHC at 6.5 TeV. First, we show that a significant amount of second order chromaticity Q'' can be introduced in the machine in a well-controlled manner. Second, we demonstrate that the incoherent betatron tu...

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Detalles Bibliográficos
Autores principales: Schenk, Michael, Amorim, David, Biancacci, Nicolo, Buffat, Xavier, Carver, Lee, De Maria, Riccardo, Li, Kevin, Métral, Elias, Salvant, Benoit
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2017-THPVA026
http://cds.cern.ch/record/2289637
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author Schenk, Michael
Amorim, David
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
De Maria, Riccardo
Li, Kevin
Métral, Elias
Salvant, Benoit
author_facet Schenk, Michael
Amorim, David
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
De Maria, Riccardo
Li, Kevin
Métral, Elias
Salvant, Benoit
author_sort Schenk, Michael
collection CERN
description The study reports on dedicated measurements made with a single nominal bunch in the LHC at 6.5 TeV. First, we show that a significant amount of second order chromaticity Q'' can be introduced in the machine in a well-controlled manner. Second, we demonstrate that the incoherent betatron tune spread from Q'' can provide beam stability through the Landau damping mechanism. This is a first step in the development of a Q'' knob to be potentially applied during regular physics operation in the LHC.
id oai-inspirehep.net-1626255
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling oai-inspirehep.net-16262552019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2017-THPVA026http://cds.cern.ch/record/2289637engSchenk, MichaelAmorim, DavidBiancacci, NicoloBuffat, XavierCarver, LeeDe Maria, RiccardoLi, KevinMétral, EliasSalvant, BenoitPractical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHCAccelerators and Storage RingsThe study reports on dedicated measurements made with a single nominal bunch in the LHC at 6.5 TeV. First, we show that a significant amount of second order chromaticity Q'' can be introduced in the machine in a well-controlled manner. Second, we demonstrate that the incoherent betatron tune spread from Q'' can provide beam stability through the Landau damping mechanism. This is a first step in the development of a Q'' knob to be potentially applied during regular physics operation in the LHC.CERN-ACC-2017-192oai:inspirehep.net:16262552017
spellingShingle Accelerators and Storage Rings
Schenk, Michael
Amorim, David
Biancacci, Nicolo
Buffat, Xavier
Carver, Lee
De Maria, Riccardo
Li, Kevin
Métral, Elias
Salvant, Benoit
Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title_full Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title_fullStr Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title_full_unstemmed Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title_short Practical Stabilisation of Transverse Collective Instabilities with Second Order Chromaticity in the LHC
title_sort practical stabilisation of transverse collective instabilities with second order chromaticity in the lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2017-THPVA026
http://cds.cern.ch/record/2289637
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AT amorimdavid practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT biancaccinicolo practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT buffatxavier practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT carverlee practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT demariariccardo practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT likevin practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT metralelias practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc
AT salvantbenoit practicalstabilisationoftransversecollectiveinstabilitieswithsecondorderchromaticityinthelhc

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