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Figure 3
Comparison of per-pixel baseline and blank removal. (a) Ratio of per-pixel to blank-corrected fits for sulfur. Seven sub-populations (see the supporting information) are color coded on both the scatter plot and images. Black lines: fits to equation (6)[link]. (b) Representative per-pixel baselines for each sub-population (1–7) and blank pixels (0); the black line marks the sulfur Kα emission centroid. (c) Histograms of fitted sulfur concentrations for each sub-population. Solid = blank corrected; dash = per-pixel baseline corrected. (d) Comparison of per-pixel and blank removal for low-Z elements. (e) Comparison for transition metals. Solid red lines in (d) and (e) are a ratio of 1; dashed red lines mark the apparent asymptote.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 2| March 2019| Pages 497-503
https://doi.org/10.1107/S1600577519000651
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