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Figure 3
Mn Kα spectra at incident energies Einc of (a) 7880 eV, (b) 7890 eV, (c) 7900 eV and (d) 7910 eV, where the diffraction peaks can be observed in each of the three analyser crystals (the Bragg diffraction is from the same parallel planes normal to the crystal analyser surface but in fourth-order diffraction, and appears as a line at an angle to the fluorescence spectrum).

IUCrJ
Volume 11| Part 4| July 2024| Pages 620-633
ISSN: 2052-2525
https://doi.org/10.1107/S2052252524005165