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Figure 7
Validation of spectral–spatial mode propagation against experimental measurements at the HEPS HXCS beamline. (a) Simulated intensity distributions reconstructed from propagated modes at photon energies of 12.40 keV and 12.20 keV. (b) Simulated intensities after convolution with a Gaussian point-spread function to account for the finite resolution of the imaging system. (c) Experimentally measured fluorescence images acquired at 51.3 m from the source. Note that the non-uniform intensity features observed on the left side of the image correspond to the marks on the fluorescence screen. (d) Quantitative comparison of horizontal and vertical line profiles extracted from the beam center. Blue dots and orange dots represent the experimental data, respectively, while the solid lines of the corresponding colors denote the PSF-convolved simulation results.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 5| September 2026|
https://doi.org/10.1107/S1600577526007034