Journal article

Lifetimes of doubly K -shell ionized states

  • Polasik, M . Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Słabkowska, K. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Kozioł, K. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Starosta, J. Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland
  • Dousse, Jean-Claude Physics Department, University of Fribourg, Switzerland
  • Hoszowska, Joanna Institute of Physics, Jan Kochanowski University, Kielce, Poland
  • Rzadkiewicz, J. The Andrzej Soltan Institute for Nuclear Studies, Otwock-Świerk, Poland - Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland
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    2011
Published in:
  • Physica Scripta. - 2011, vol. 2011, no. T144, p. 014021
English The present work provides a reliable interpretation of the Khα₁/Khα₂ intensity ratios and an explanation of the lifetime values for K-shell hollow atoms based on an advanced theoretical analysis (using extensive multiconfiguration Dirac–Fock calculations with the inclusion of the transverse Breit interaction and quantum electrodynamics corrections). It was found that, as a result of closing the Khα₁ de-excitation channel in the pure LS coupling scheme, the Khα₁/Khα₂ intensity ratio changes with the atomic number from small values (for the LS coupling limit at low Z) to about 1.5– 1.6 (for the j–j coupling limit at high Z). However, closing the Khα₁ de-excitation channel (due to the domination of the pure LS coupling for the low-Z atoms) does not enlarge the lifetimes of hollow atoms.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/305062
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