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Figure 4
(a) Normalized Ni K-edge (8333 eV) XANES data measured in fluorescence of a very dilute NiO sample (0.008 edge step), comparing a 60 s averaged data-acquisition period for increasing monochromator oscillation frequency. (b) A stacked plot of the extended XAS data collected with increasing monochromator oscillation frequency and decreased total signal-acquisition period. (c) Obtained R-space data of 1 to 0.25 s data-acquisition periods. |