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Figure 3
Evaluation of X-ray speckle intensity and characteristics. (a, b) Comparison of average pulse intensity before and after insertion of the solid attenuator. (c) The mean shift-corrected spatial autocorrelation of the speckle intensity. The solid contour maps 1σ width around the maxima of the ensemble average autocorrelation function. Transverse speckle widths, σx and σy, were extracted from fits of the axial projections (dashed) of the ensemble. Shaded regions reflect the shot-to-shot deviation of the axial projections. (d) Pulse-indexed probability density of the speckle contrast, C, and skew normal fit of the ensemble probability density (histogram).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 5| September 2026|
https://doi.org/10.1107/S1600577526005898
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