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Khα1,2 X-ray hypersatellite line broadening as a signature of K-shell double photoionization followed by outer-shell ionization and excitation

  • Polasik, M. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Słabkowska, K. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Rzadkiewicz, J. Soltan Institute for Nuclear Studies, Otwock-Świerk, Poland - Institute of Plasma Physics and Laser Microfusion, Warsaw, Poland
  • Kozioł, K. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Starosta, J. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Wiatrowska-Kozioł, E. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Dousse, Jean-Claude Physics Department, University of Fribourg, Switzerland
  • Hoszowska, Joanna Physics Department, University of Fribourg, Switzerland
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    11.08.2011
Published in:
  • Physical Review Letters. - 2011, vol. 107, no. 7, p. 073001
English We propose a novel approach for the theoretical analysis of the photoinduced high-resolution Khα1,2 x-ray hypersatellite spectra, which allows us to obtain reliable values of lifetimes of the doubly K-shell ionized states and fundamental information about the relative role of K-shell double photoionization (DPI) mechanisms. It is demonstrated for the first time that the Khα1,2 hypersatellite natural line broadening observed for selected metal atoms with 20≤Z≤30 can be well reproduced quantitatively by taking into account the influences of the open-shell valence configuration (adopted from predictions of the band-structure method) and the outer-shell ionization and excitation following the DPI process.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
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Persistent URL
https://folia.unifr.ch/unifr/documents/302025
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