Longitudinal coupled-bunch instability studies in the PS

The main longitudinal limitation for LHC-type beams inthe PS are coupled-bunch instabilities. A dedicated proto-typefeedbacksystemusingaFinemetcavityasalongitudinalkicker has been installed. Extensive tests with beam havebeen performed to explore the intensity reach with this feed-back. The maximum...

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Detalles Bibliográficos
Autores principales: Damerau, H, Ventura, L
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.23727/CERN-Proceedings-2017-002.59
http://cds.cern.ch/record/2301802
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author Damerau, H
Ventura, L
author_facet Damerau, H
Ventura, L
author_sort Damerau, H
collection CERN
description The main longitudinal limitation for LHC-type beams inthe PS are coupled-bunch instabilities. A dedicated proto-typefeedbacksystemusingaFinemetcavityasalongitudinalkicker has been installed. Extensive tests with beam havebeen performed to explore the intensity reach with this feed-back. The maximum intensity with nominal longitudinalemittance at PS extraction has been measured, as well as theemittance required to keep the beam longitudinally stableat the design intensity for the High-Luminosity LHC (HL-LHC). A higher-harmonic cavity is a complementary op-tion to extend the intensity reach beyond the capabilities ofthe coupled-bunch feedback. Preliminary machine develop-ment (MD) studies operating one20MHzor one40MHzRF system as a higher harmonic at the flat-top indicate thebeneficial effect on longitudinal beam stability
id oai-inspirehep.net-1649877
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling oai-inspirehep.net-16498772019-09-30T06:29:59Zdoi:10.23727/CERN-Proceedings-2017-002.59http://cds.cern.ch/record/2301802engDamerau, HVentura, LLongitudinal coupled-bunch instability studies in the PSAccelerators and Storage RingsThe main longitudinal limitation for LHC-type beams inthe PS are coupled-bunch instabilities. A dedicated proto-typefeedbacksystemusingaFinemetcavityasalongitudinalkicker has been installed. Extensive tests with beam havebeen performed to explore the intensity reach with this feed-back. The maximum intensity with nominal longitudinalemittance at PS extraction has been measured, as well as theemittance required to keep the beam longitudinally stableat the design intensity for the High-Luminosity LHC (HL-LHC). A higher-harmonic cavity is a complementary op-tion to extend the intensity reach beyond the capabilities ofthe coupled-bunch feedback. Preliminary machine develop-ment (MD) studies operating one20MHzor one40MHzRF system as a higher harmonic at the flat-top indicate thebeneficial effect on longitudinal beam stabilityoai:inspirehep.net:16498772017
spellingShingle Accelerators and Storage Rings
Damerau, H
Ventura, L
Longitudinal coupled-bunch instability studies in the PS
title Longitudinal coupled-bunch instability studies in the PS
title_full Longitudinal coupled-bunch instability studies in the PS
title_fullStr Longitudinal coupled-bunch instability studies in the PS
title_full_unstemmed Longitudinal coupled-bunch instability studies in the PS
title_short Longitudinal coupled-bunch instability studies in the PS
title_sort longitudinal coupled-bunch instability studies in the ps
topic Accelerators and Storage Rings
url https://dx.doi.org/10.23727/CERN-Proceedings-2017-002.59
http://cds.cern.ch/record/2301802
work_keys_str_mv AT damerauh longitudinalcoupledbunchinstabilitystudiesintheps
AT ventural longitudinalcoupledbunchinstabilitystudiesintheps

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