Phys. Rev. ST Accel. Beams 8, 102801 (2005) [9 pages]rf amplitude modulation to suppress longitudinal coupled bunch instabilities in the CERN Super Proton Synchrotron |
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Received 30 August 2004; published 18 October 2005
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.
©2005 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v8/e102801
DOI: 10.1103/PhysRevSTAB.8.102801
PACS: 29.27.Bd
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