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Figure 6
A 2D slice of the Au crystal's Mathematical equation Bragg peak amplitude profile resampled in the crystal reference frame and colored on a logarithmic scale, (a) as measured without an alien, (b) with an artificially added alien, (c) with the alien removed by manual editing and (d) with the alien removed by adaptive coupling. The irregular shape of the alien does not fit cleanly into the (originally) rectangular region cut out of panel (c), which erases some desired signal and leaves some alien signal. By contrast, adaptive coupling is able to mask a more tightly fitted region around the alien and replaces the erased intensity with projected values. The 3D image arrays were sliced through the center of the alien rather than the main peak.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 59| Part 1| February 2026| Pages 40-48
https://doi.org/10.1107/S1600576725010131
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