Journal article

High-resolution x-ray-emission study of 1s4p and 1s3d two-electron photoexcitations in Kr

  • Kavčič, Matjaz Jožef Stefan Institute, Ljubljana, Slovenia
  • Žitnik, M. Jožef Stefan Institute, Ljubljana, Slovenia - Faculty of Mathematics and Physics, University of Ljubljana, Slovenia
  • Sokaras, D. SLAC National Accelerator Laboratory, Menlo Park, California, USA
  • Weng, T.-C. SLAC National Accelerator Laboratory, Menlo Park, California, USA
  • Alonso-Mori, R. SLAC National Accelerator Laboratory, Menlo Park, California, USA
  • Nordlund, D. SLAC National Accelerator Laboratory, Menlo Park, California, USA
  • Dousse, Jean-Claude Department of Physics,University of Fribourg, Switzerland
  • Hoszowska, Joanna Department of Physics,University of Fribourg, Switzerland
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    21.08.2014
Published in:
  • Physical Review A. - 2014, vol. 90, no. 2, p. 022513
English High-energy-resolution photoexcited KN2,3 x-ray-emission measurements were carried out on krypton with the excitation energy tuned around the 1s4p and 1s3d double-excitation thresholds. Comprehensive two-dimensional resonant inelastic x-ray-scattering maps were recorded for the range of excitation and emission energies corresponding to both types of double excitations. The double-excitation signal could be clearly resolved from the dominant 1s ionization signal. The latter was subtracted from the measured maps, yielding isolated 1s4p and 1s3d photoexcitation spectra. Both two-electron excitation spectra are well described by a model spectrum built of consecutive bound-bound discrete transitions and shake-up and shake-off channels giving precise energies and intensities of the corresponding contributions. The obtained results are compared with other existing experimental values based on x-ray-absorption measurements and theoretical predictions.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/303799
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