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Figure 3
Source size measurements at the APS 3-ID-B beamline under two machine coupling conditions. (a) and (d) show schematics of the source shapes for low coupling and full coupling, respectively. These are Gaussian profiles generated using the measured sigma values to indicate the relative scale and shape of the source. (b, c, e, f) display the measured visibility V(z) as a function of z for the horizontal and vertical directions, with fitted curves using equation (3)[link].

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 32| Part 5| September 2025| Pages 1152-1161
https://doi.org/10.1107/S160057752500579X
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