Keyword: multipactoring
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WEPO018 Progress in the Design of a New 150-MHz Flat Top Cavity for the PSI RING Cyclotron cavity, cyclotron, flattop, electron 241
 
  • J.-Y. Raguin, M. Bopp, R.F. Fortunati, J. Grillenberger, T.G. Lucas, M. Pedrozzi, M. Schneider, M. Stoll
    PSI, Villigen PSI, Switzerland
  • E. Solodko
    Transmutex SA, Vernier, Switzerland
 
  Increasing PSI’s 590 MeV main cyclotron beam current to 3 mA requires the replacement of the existing power-limited 150 MHz flat top cavity with a new cavity. This new cavity has been designed to withstand a 700 kV peak voltage and a 140 kW dissipated average power. Although very similar in its geometry to the original flat top cavity currently in operation, in the new design, special attention has been paid to the shaping of the four electrodes for maximizing the shunt impedance. Furthermore, the topology of the cooling water channels has been optimized to increase the power handling capabilities of the cavity. Finally, in order to mitigate multipacting observed in the current design, variations on the new cavity baseline geometry have started to be explored.  
poster icon Poster WEPO018 [4.072 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO018  
About • Received ※ 30 November 2022 — Revised ※ 13 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 12 March 2023
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