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High-resolution KMM radiative Auger x-ray emission spectra of calcium induced by synchrotron radiation

  • Cao, Wei Department of Physics, University of Fribourg, Switzerland
  • Kavčič, Matjaz J. Stefan Institute, Ljubljana, Slovenia
  • Dousse, Jean-Claude Department of Physics, University of Fribourg, Switzerland
  • Berset, Michel Department of Physics, University of Fribourg, Switzerland
  • Bučar, K. J. Stefan Institute, Ljubljana, Slovenia
  • Budnar, M. J. Stefan Institute, Ljubljana, Slovenia
  • Fennane, Karima Department of Physics, University of Fribourg, Switzerland
  • Hoszowska, Joanna Department of Physics, University of Fribourg, Switzerland
  • Maillard, Yves-Patrick Department of Physics, University of Fribourg, Switzerland
  • Szlachetko, Jakub Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland - Institute of Physics, Jan Kochanowski University, Kielce, Poland
  • Szlachetko, Monika Department of Physics, University of Fribourg, Switzerland
  • Žitnik, M. J. Stefan Institute, Ljubljana, Slovenia
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    20.04.2011
Published in:
  • Physical Review A. - 2011, vol. 83, no. 4, p. 042513
English The KMM radiative Auger (RA) x-ray spectra of solid Ca were induced by monochromatic synchrotron radiation and measured with a high-resolution von Hamos bent crystal spectrometer. Two excitation energies were employed, one in the near K threshold region and the second well above the K absorption edge. The KMM RA spectral structure and relative intensity with respect to the diagram Kβ1,3 (K-M3,2) line are found to be independent of the excitation energy. The overall RA structure resembles the density of unoccupied s, p, and d states. Due to solid-state effects, however, spectral features resulting from the major discrete shake-up transitions could not be resolved. For the total KMM RA to Kβ1,3 yield ratio, a value of 0.053(3) is obtained. The latter is compared to theoretical predictions and available experimental data obtained by various types of target excitation.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/301794
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