Journal article
Resonance structure of the photoionization cross sections of the Kr atom in the energy region between single and double ionization thresholds



Publication Details
Authors:
Sukhorukov, V.; Lagutin, B.; Petrov, I.; Schmoranzer, H.; Ehresmann, A.; Vollweiler, F.; Schartner, K.
Publication year:
1995
Journal:
Journal of Electron Spectroscopy and Related Phenomena
Pages range:
421-426
Volume number:
76
ISSN:
0368-2048

Abstract
The photoionization cross sections of the 4s-main line and the corresponding satellite lines of the Kr atom are studied experimentally and theoretically in the near-threshold region. Our measurements have been made using the photon induced fluorescence spectroscopy technique. Many-electron correlations have been accounted for in the calculations. It was shown that the interference of the direct-ionization channel and the channel of the ionization through the decay of the intermediate doubly-excited states explains the experimentally observed complex resonant structure of the 4s-photoabsorption spectrum of the Kr atom.


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