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Figure 4
(a) TFY-XANES spectrum of IrO2 powder measured by scanning the incident photon energy with an energy step of 0.3 eV using the photon energy control system. The self-seeded X-ray spectra at 11.220 keV (orange) and 11.223 keV (pink) are plotted together. (b) Ir Lβ2 fluorescence signals of IrO2 diffracted by four von Hamos analyzer crystals, recorded simultaneously on the 2D detector. The upper (Ei = 11.220 keV) and lower (Ei = 11.223 keV) images are averaged over 1800 shots. (c) Magnified images of the orange and pink boxes in (b) from the same Si(660) crystal. (d) Ir Lβ2 X-ray emission spectra obtained by projecting the images in (c) onto the horizontal line.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 6| November 2023| Pages 1038-1047
https://doi.org/10.1107/S1600577523007312
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