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Figure 12
Fitting the experimental XES (Eem) using the theoretically derived spectrum for the 2s and 2p shake-off satellites to the Kα3,4 experimental profile for the maximum incident energy Einc = 9100 eV. Auger processes have been considered, and the difference between this figure and Fig. 11[link] is the relative intensities of the 2s and 2p shake-off satellites. This improved [\chi^{2}_{r}] indicates that the Auger process is important. This shows that the Kα3,4 XES spectrum is produced by ionization of the 2p satellite, indeed with a contribution from 2s ionization, along with the 1s electron. Hence, this profile is well predicted as the result of many-body processes involving double ionization.

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