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Figure 4
Top: sensitivities for the K-lines, lower limits of detection (inset table) and sum spectrum (inset) of 36 (6 × 6) pixels measured on the NIST Standard Reference Material 1412 (Multicomponent Glass) with 12.7 keV monochromatic excitation. Iron is marked in gray as it is just a reference and not a certified value. Bottom: distribution maps for Ca, K, Fe and Zn showing the homogeneity of the SRM. The distance between pixels was 10 µm. The measurement time per pixel was 20 s.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 25| Part 4| July 2018| Pages 1189-1195
https://doi.org/10.1107/S1600577518006203
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