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Figure 7
The radiation after focusing in the case of an aperture of 0.3 mm × 0.3 mm placed at 23 m from the exit of the undulator. The sample is located in the focus (1.193 m from the second mirror). It is fair to say we are looking near the k⊥ = 0 components – spatial filtering. Thus, we see two effects on the sample: spatial filtering and diffraction on the aperture. Axis convention is the same as for Fig. 5[link] except the blue line on the right-hand subplot which is plotted for the slice with maximum intensity.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 3| May 2021| Pages 769-777
https://doi.org/10.1107/S1600577521001958
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