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Figure 1
(a) The layout of the experimental setup on the DiProI beamline. With KAOS tuned to beam collimation, the SZP with a focal distance fSZP generates a focused OAM beam in front of the OSA, which selectively permits light from the first diffraction order to reach the sample but blocks other diffraction orders. Positioned in front of the SZP optics, a CBS obstructs the transmitted direct beam. The Hartmann wavefront sensor is mounted at a distance zWFS downstream from the SZP focal plane. Numerical values are: fSZP = 164.7 mm, zWFS = 1620 mm and zCCD = 140 mm. (b) The relation between the sagittal and tangential focusing radii. In a perfectly stigmatic system, the distance between two source points is 0 (Δ = 0). (c) A sketch depicting the focused beam with the detection area (not to scale).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 5| September 2024| Pages 1058-1066
https://doi.org/10.1107/S160057752400626X
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