Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies

It is proposed to use a radio frequency quadrupole (RFQ) to introduce a longitudinal spread of the betatron frequency for Landau damping of transverse beam instabilities in circular accelerators. The existing theory of stability diagrams for Landau damping is applied to the case of an RFQ. As an exa...

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Detalles Bibliográficos
Autores principales: Grudiev, Alexej, Li, Kevin, Schenk, Michael
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2159002
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author Grudiev, Alexej
Li, Kevin
Schenk, Michael
author_facet Grudiev, Alexej
Li, Kevin
Schenk, Michael
author_sort Grudiev, Alexej
collection CERN
description It is proposed to use a radio frequency quadrupole (RFQ) to introduce a longitudinal spread of the betatron frequency for Landau damping of transverse beam instabilities in circular accelerators. The existing theory of stability diagrams for Landau damping is applied to the case of an RFQ. As an example, the required quadrupolar strength is calculated for stabilizing the Large Hadron Collider (LHC) beams at 7 TeV. It is shown that this strength can be provided by a superconducting RF device which is only a few meters long. Furthermore, the stabilizing effect of such a device is proven numerically by means of the PyHEADTAIL macroparticle tracking code for the case of a slow head-tail instability observed in the LHC at 3.5 TeV.
id oai-inspirehep.net-1362670
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling oai-inspirehep.net-13626702019-09-30T06:29:59Zhttp://cds.cern.ch/record/2159002engGrudiev, AlexejLi, KevinSchenk, MichaelRadio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studiesAccelerators and Storage RingsIt is proposed to use a radio frequency quadrupole (RFQ) to introduce a longitudinal spread of the betatron frequency for Landau damping of transverse beam instabilities in circular accelerators. The existing theory of stability diagrams for Landau damping is applied to the case of an RFQ. As an example, the required quadrupolar strength is calculated for stabilizing the Large Hadron Collider (LHC) beams at 7 TeV. It is shown that this strength can be provided by a superconducting RF device which is only a few meters long. Furthermore, the stabilizing effect of such a device is proven numerically by means of the PyHEADTAIL macroparticle tracking code for the case of a slow head-tail instability observed in the LHC at 3.5 TeV.oai:inspirehep.net:13626702015
spellingShingle Accelerators and Storage Rings
Grudiev, Alexej
Li, Kevin
Schenk, Michael
Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title_full Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title_fullStr Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title_full_unstemmed Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title_short Radio Frequency Quadrupole for Landau Damping in Accelerators: Analytical and numerical studies
title_sort radio frequency quadrupole for landau damping in accelerators: analytical and numerical studies
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2159002
work_keys_str_mv AT grudievalexej radiofrequencyquadrupoleforlandaudampinginacceleratorsanalyticalandnumericalstudies
AT likevin radiofrequencyquadrupoleforlandaudampinginacceleratorsanalyticalandnumericalstudies
AT schenkmichael radiofrequencyquadrupoleforlandaudampinginacceleratorsanalyticalandnumericalstudies

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