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Figure 9
Diffraction scan of a 3 mm thick section of formaldehyde-fixed sheep's forebrain. Panel A is a direct photograph of the section. Panel B is the 2D heatmap of myelin principal repeat with an overlay of myelin alignment at that location. The pixels without an alignment bar denote areas with isotropic diffraction patterns, i.e. loosely packed myelin with no preferential axis of alignment. These are notably in the visible gray matter regions of the section. Three regions of interest which demonstrate a significant transition between these tissue types are noted with different colors in panel B.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 1| January 2026| Pages 246-257
https://doi.org/10.1107/S1600577525010859
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