Meeting on Debuncher Cavity 9. July 2010 (under construction)

present: A.K. Bhattacharyya, P. Baudrenghien, F. Gerigk, L.M. Hein, W. Hoefle, A. Lombardi, J. Tuckmantel, R. Wegner,

LLRF simulations

  • slides in EDMS
  • AKB presented results for simulations with a larger phase swing (-+112 degrees instead of -+ 81.4 degrees) for a period length of 20/40 us and for currents of 20/40 mA.
  • The simulations now contain loop delays, ripples from the power supplies and the frequency detuning.
  • At the moment the model assumes klystron characteristics.


  • PB, JT, WH will re-iterate on the physics, which is now in AKBs model. The goal is to confirm that time domain and frequency domain calculations converge. The simulation model will be compared with the LHC injection model for SC cavities.
  • AL will organise a dedicated BCC meeting on the debuncher cavity on September 2nd.
  • FG will quantify the available power levels at the cavity position. → 50 kW (for both positions)
  • AKB will apply power supply ripples and loop delay for the ramping and debuncher cavities.

-- FrankGerigk - 13-Jul-2010

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