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Miltchev, V.

  
Paper Title Page
WG331 Simulation Studies on the Self-Seeding Option at FLASH  
 
  • V. Miltchev, J. Rossbach
    Uni HH, Hamburg
  • B. Faatz, R. Treusch
    DESY, Hamburg
 
  Funding: This work has been partially supported by the EU Commission in the Sixth Framework Program, Contract No. 011935 – EUROFEL.

In order to improve the temporal coherence of the radiation generated by FLASH, a two-stage seeding scheme [1] is presently being realized. It consists of two undulator stages and a magnetic chicane and a monochromator located between them. In this contribution we investigate various configurations of the electron optics of the seeding set-up. The optimization of the lattice in the first seeding stage and the parameters of the magnetic chicane will be discussed. Simulation results for the performance of the seeded FEL at different resonant wavelengths will be presented.

[1] J. Feldhaus et. al. "Possible application of X-ray optical elements for reducing the spectral bandwidth of an X-ray SASE FEL". Optics Communications, Volume 140, Pages 341–352

 
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WG432 Simulations with ASTRA on the Benchmark Problem  
 
  • V. Miltchev
    Uni HH, Hamburg
 
  Simulations on the gun benchmark problem with ASTRA will be presented. Considered are the measurements of charge vs. rf phase, reference phase determination, momentum distribution, transverse emittance, rms beam size at different locations.  
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