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Figure 3
Power distribution and spectrum of the X-ray pulse along the undulator, calculated: (a) and (b) at the exit of the first undulator (five segments); (c) and (d) after the first HXRSS monochromator; (e) and (f) at the exit of the second undulator (five segments); (g) and (h) after the second HXRSS monochromator; (i) and (j) at the exit of the setup. Grey lines refer to single-shot realisations, the black line refers to the average over 100 simulations. The insets in (c) and (g) show an enlarged portion of the main plot, illustrating the seed appearing after the filtering process. The black arrows indicate the position of the seed relative to the electron slice with maximum current. The red lines in graphs (i) and (j) refer to the particular XFEL pulse that is used for wavefront propagation simulations (see §3[link]).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 2| March 2016| Pages 410-424
doi:10.1107/S1600577515024844
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