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Figure 7
Temporal, spectral, spatial and angular distributions of the radiation pulse at the FEL undulator exit (z = 74 m in Fig. 8[link]). (a) Pulse power; pulse duration is ∼14 fs (FWHM). (b) Spectrum; spectral bandwidth is ∼0.95 eV (FWHM). (c) Spatial distribution, two-dimensional plot; (d) vertical cut through the center of the fluence distribution; and (e) horizontal cut. The beam size is about 50 µm (V) × 50 µm (H) (FWHM). (f) Angular distribution, two-dimensional plot; (g) vertical cut through the center of the fluence distribution; and (h) horizontal cut. The beam divergence amounts to 1.8 µrad (V) × 1.8 µrad (H) (FWHM).

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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