• V. Sahakyan, V.G. Khachatryan, A. Tarloyan, V.M. Tsakanov
  CANDLE, Yerevan

Time dependent simulations for the European XFEL SASE1 beamline for various FODO lattice quadrupole spacing in undulator section are presented. The dependence of radiation main parameters, saturation lengths, saturation power and brilliance on the betatron phase advance and the FODO lattice arrangement in undulator section are studied and compared with the case based on design focusing lattice. Impact of the trajectory correction and electron beam main parameters on the SASE FEL performance is discussed.