Accelerator Physics (WebEx - Phone)

GMT
Daniel Schulte (CERN), Kiyoshi Kubo (KEK)
Description
14:00 GMT Freddy Poirier: "DFS and ATL in the ML with Merlin" Javier Lopez: "start-to-end simulations with Intra-train FB system" Planning paralell session of FNAL GDE Meeting
Freddy=DFSMainLinacwithRandomwalkMotion
Javier=start-to-end simulations with intra-train FB
Freddy Poirier reported “DFS Studies on the Main Linac with Rnd-walk-like motion“ (see slides on the web page) Emittacne growth is dominantly from cavity wakefield in the case of large random walk parameter. Q: What does energy corrected emittance mean? A: Emittance after the linear correlation with energy (linear dispersion) is subtracted. C: Modified version of alignment model will be made soon by Kubo. But we still need input from experts, including realistic parameters. Javier Resta Lopez reported “Placed based start-to-end simulations for the ILC with Intra-train FB system”. (see slides on the web page) Q: Which wakefield was used? TESLA-TDR? A: Newly calculated one. Different from the old TESLA wake. Should be checked for detail. Q: Why the equilibrium luminosity is so small compare with the design luminosity? A/C: The tuning may not be good enough. Kiyoshi Kubo showed a rough plan of parallel sessions in GDE meeting at FNAL. END
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