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Figure 5
Direct comparison in the reconstructed tomographic domain on the same ROI between the original ray-mapping EPR approach (left) and the proposed accelerated FFT-based L2 polychromatic reconstruction (right). Both panels are shown with the same ROI crop, grayscale window and scale bar.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 4| July 2026|
https://doi.org/10.1107/S1600577526004273
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