X-ray-absorption features from multielectron excitations above Xe [Formula Presented] edges

Yoshiaki Ito, Aurel M. Vlaicu, Tatsunori Tochio, Takeshi Mukoyama, Masao Takahashi, Shuichi Emura, Yoshiro Azuma

Research output: Contribution to journalArticle

14 Citations (Scopus)


The x-ray-absorption cross section above the [Formula Presented] edges in xenon gas has been measured using synchrotron radiation. Multielectron excitation effects are investigated over a few hundred eV region from the Xe [Formula Presented] [Formula Presented] and [Formula Presented] edges and the contributions from the effects of shake-up and shake-off to the photoabsorption spectrum are elucidated. Several multielectron excitation features were detected and analyzed by the theoretical energy of the shake-up process. Previous observations of the [Formula Presented] and [Formula Presented] transitions have been confirmed. [Formula Presented] transitions are clearly identified in the present study. It is very difficult to detect the [Formula Presented] multielectron transition with the sensitivity of [Formula Presented] at the [Formula Presented] edge jump. The [Formula Presented] edge was distinguished using the first derivative of the absorption curve. A new transition is found between [Formula Presented] and [Formula Presented] transitions and identified as a three-electron transition [Formula Presented] Moreover, the difference in the behavior of the multielectron excitation as a function of x-ray energy among the [Formula Presented] and [Formula Presented] or [Formula Presented] edges is confirmed and investigated.

Original languageEnglish
Pages (from-to)873-878
Number of pages6
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
Publication statusPublished - Jan 1 1998

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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