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Figure 3
An example of the wavefront propagation results. This is for a 0.2 mm-diameter cut-Gaussian source. (a) 3D view of the central 5 mm × 5 mm of the propagation of the source by a distance of 600 mm (intermediate beam). (b) Slice through the centre of the intermediate beam to a diameter of 30 mm on a log scale showing multiple rings; an example truncation diameter is shown at the minimum after the tenth ring. (c) 3D view of the reverse propagation (image) of the truncated intermediate beam. (d) Slice through the centre of the image; the dotted grid lines show the half-maximum and the nominal 0.2 mm target diameter, and the inset shows ripples at the base of the main beam. All intensities are normalized to peak at 1.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 4| July 2024| Pages 723-732
https://doi.org/10.1107/S1600577524003904
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