Figure 11
Simulated horizontal phase space of the sliced electrons in the U20 undulator of the CRISTAL beamline. Phase space normalized to and of the beam at equilibrium state. Particles in dark blue represent the last interaction, i.e. first pass in the undulator, red represents emitting photons within the beamline acceptance, and light blue previous interactions, i.e. halo. Red lines: front-end diaphragm acceptance. Black lines: slit acceptance at the very end of the beamline. Simulation with ELEGANT and AT using ELaser = 1.5 mJ, = 30 MeV, = 35 fs FWHM, ZR = 0.35 m, M 2 = 1.0, gap = 16.7 mm. |