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Abstract : The X-ray absorption cross section above the L edges in Xenon gas has been measured using synchrotron radiation. Multielectron excitation effects are investigated over a few hundred eV region from the Xe-LI, LII, and LIII edges and the contributions from the effects of shakeup and shakeoff to the photoabsorption spectrum are elucidated. Several features for the multielectron excitations were detected and analyzed by the theoretical energy of the shake up process. Previous observations of the 2s,p5s,p and 2s,p4d transitions have been confirmed. 2s,p4p, 2s4s, and 2s3d transitions are clearly identified in the present study and the difference between the LI and LII, LIII edges for the change in slope of the absorption curve in passing through the three identified two-electron excitations is investigated.





Autor: T. Tochio Y. Ito T. Mukoyama M. Takahashi S. Emura

Fuente: https://hal.archives-ouvertes.fr/



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