rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron

rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron

Without specific counter measures, the LHC type beam in the SPS suffers from longitudinal coupled bunch instabilities. To prevent them, the SPS impedance has been decreased over the last few years and the operation of a high frequency Landau damping system has been established. In the absence of thi...

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Bibliographic Details
Main Authors: E. Vogel, T. Bohl, U. Wehrle
Format: Article
Language:English
Published: American Physical Society 2005-10-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.8.102801
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spelling doaj-66bc60ca00b74dc29bd1095aad1ddd252020-11-24T21:25:46ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022005-10-0181010280110.1103/PhysRevSTAB.8.102801rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton SynchrotronE. VogelT. BohlU. WehrleWithout specific counter measures, the LHC type beam in the SPS suffers from longitudinal coupled bunch instabilities. To prevent them, the SPS impedance has been decreased over the last few years and the operation of a high frequency Landau damping system has been established. In the absence of this Landau damping system one may alternatively introduce an rf amplitude modulation to stabilize the beam. We present results obtained by this method in the SPS and considerations for a potential increase of the longitudinal beam stability in the LHC.http://doi.org/10.1103/PhysRevSTAB.8.102801
collection DOAJ
language English
format Article
sources DOAJ
author E. Vogel
T. Bohl
U. Wehrle
spellingShingle E. Vogel
T. Bohl
U. Wehrle
rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
Physical Review Special Topics. Accelerators and Beams
author_facet E. Vogel
T. Bohl
U. Wehrle
author_sort E. Vogel
title rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
title_short rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
title_full rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
title_fullStr rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
title_full_unstemmed rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron
title_sort rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the cern super proton synchrotron
publisher American Physical Society
series Physical Review Special Topics. Accelerators and Beams
issn 1098-4402
publishDate 2005-10-01
description Without specific counter measures, the LHC type beam in the SPS suffers from longitudinal coupled bunch instabilities. To prevent them, the SPS impedance has been decreased over the last few years and the operation of a high frequency Landau damping system has been established. In the absence of this Landau damping system one may alternatively introduce an rf amplitude modulation to stabilize the beam. We present results obtained by this method in the SPS and considerations for a potential increase of the longitudinal beam stability in the LHC.
url http://doi.org/10.1103/PhysRevSTAB.8.102801
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AT tbohl rfamplitudemodulationtosuppresslongitudinalcoupledbunchinstabilitiesinthecernsuperprotonsynchrotron
AT uwehrle rfamplitudemodulationtosuppresslongitudinalcoupledbunchinstabilitiesinthecernsuperprotonsynchrotron
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