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Figure 7
Grating interferometry measurements with different horizontal analysis apertures. (a), (d) and (g) show the beam within different selected analysis apertures. (b), (e) and (h) display the interferogram periods pz as a function of z, with linear fits used to determine the effective source position D. (c), (f) and (i) present the visibility curves V(z) with fits based on equation (3)[link], revealing the transverse coherence length at the measurement plane.

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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