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Figure 3
Ray-tracing simulations results compared with a wavefront measurement of the beam profile in the focal position at hν = 1050 eV. For all three beam profile images the color scale goes from 0 (blue) to 1 (red), as each image is normalized to the maximum value. (a) Beam profile from ray-tracing simulations performed assuming a Gaussian-shaped source with size and divergence as per Table 1[link] with no extension in the longitudinal direction. (b) Beam profile from ray-tracing simulations performed assuming a source extending over the last ten undulator cells (see text). (c) Beam profile as obtained from the wavefront sensor measurement.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 2| March 2023| Pages 457-467
https://doi.org/10.1107/S1600577522012085
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