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Figure 2
Focal spot for a line and point focus at 6.6 keV (third harmonic) measured at the Bernina sample position during early commissioning (fundamental FEL energy at 2.2 keV). The focal spot was measured in air with a profile monitor after transmission through a diamond (50 µm) window separating the beamline vacuum system from the experimental area.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 3| May 2019| Pages 874-886
https://doi.org/10.1107/S160057751900331X
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