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Figure 9
Capture of the laser spot at the sample position using a hybrid phase plate designed to generate a 250 µm focal spot. The profiles shown at the top and to the right are 40 µm thick lineouts through the focal spot at Y = 0 and X = 0, respectively. Full width at half-maximum (FWHM) is close to 200 µm along both axes. Enclosed energy measurements on this figure show 50% of the energy inside a 180 µm diameter, 70% inside a 226 µm diameter and 80% inside a 290 µm diameter.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 1| January 2022| Pages 167-179
https://doi.org/10.1107/S1600577521011632
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