Author: Joly, S.
Paper Title Page
TUA2C2 Recent Advances in the CERN PS Impedance Model and Instability Simulations 86
 
  • S. Joly
    La Sapienza University of Rome, Rome, Italy
  • G. Iadarola, N. Mounet, B. Salvant, C. Zannini
    CERN, Meyrin, Switzerland
  • M. Migliorati
    INFN-Roma1, Rome, Italy
 
  Transverse instability growth rates in the CERN Proton Synchrotron are studied thanks to the recently updated impedance model of the machine. Using this model, macroparticle tracking simulations were performed with a new method well-suited for the slicing of short wakes, which achieves comparable performance to the originally implemented method while reducing the required number of slices by a factor of 5 to 10. Dedicated beam-based measurement campaigns were carried out to benchmark the impedance model. Until now, the model underestimated instability growth rates at injection energy. Thanks to a recent addition to the impedance model, namely the kicker magnets¿ connecting cables and their external circuits, the simulated instability growth rates are now comparable to the measured ones.  
slides icon Slides TUA2C2 [0.736 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-HB2023-TUA2C2  
About • Received ※ 28 September 2023 — Revised ※ 07 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 21 October 2023
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