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Laskar, J.

Paper Title Page
FRPMN013 Precise Tune Measurements from Multiple Beam Position Monitors 3913
  • Ch. Skokos, J. Laskar
    IMCCE, Paris
  • Y. Papaphilippou
    CERN, Geneva
  Funding: Work supported by the Marie Curie Intra-European Fellowship No MEIF-CT-2006-025678

One of the main limitations for precise tune measurements using kicked turn-by-turn data is the beam decoherence, which can limit the available signal to a reduced number of turns. Applying Laskar's frequency analysis, on measurements from several beam position monitors, a fast and accurate determination of the real tune is possible. The efficiency of the method is demonstrated when applied in turn-by-turn data from the ESRF storage ring and CERN's Super Proton Synchrotron. Estimates from tracking simulations and analytical considerations are further compared with the experimental results.