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Figure 4
(a)–(c) DPC phase image and cluster labels from DPC-XANES signal of a Fe particulate sample. (d)–(f) XRF Fe image and cluster labels from XRF-XANES signal clustering. (g) (Top) XRF-XANES spectra from the two regions identified by DPC clustering and inset showing edge shift between spectra. (Middle) KK transform of the extracted Fe XRF-XANES. (Bottom) Extracted differential contrast signals from each cluster and linear combination fit of absorption and phase contributions to this signal. The fitted phase components are shown. The peak positions of XRF-XANES and KK transform are shown to demonstrate the peak of the differential signal lies between these two positions.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 1| January 2023| Pages 200-207
https://doi.org/10.1107/S1600577522010633
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