High-resolution KMM radiative Auger x-ray emission spectra of calcium induced by synchrotron radiation
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Cao, Wei
Department of Physics, University of Fribourg, Switzerland
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Kavčič, Matjaz
J. Stefan Institute, Ljubljana, Slovenia
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Dousse, Jean-Claude
Department of Physics, University of Fribourg, Switzerland
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Berset, Michel
Department of Physics, University of Fribourg, Switzerland
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Bučar, K.
J. Stefan Institute, Ljubljana, Slovenia
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Budnar, M.
J. Stefan Institute, Ljubljana, Slovenia
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Fennane, Karima
Department of Physics, University of Fribourg, Switzerland
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Hoszowska, Joanna
Department of Physics, University of Fribourg, Switzerland
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Maillard, Yves-Patrick
Department of Physics, University of Fribourg, Switzerland
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Szlachetko, Jakub
Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland - Institute of Physics, Jan Kochanowski University, Kielce, Poland
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Szlachetko, Monika
Department of Physics, University of Fribourg, Switzerland
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Žitnik, M.
J. Stefan Institute, Ljubljana, Slovenia
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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.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/301794
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