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  • The KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix was measured for the first time using a combined electrostatic electron spectrometer adjusted to a 7 eV instrumental resolution. Energies and relative intensities of the all nine basic spectrum components were determined and compared with data obtained from X-ray induced spectra of metallic Ni and with theoretical results as well. Absolute energy of 6562.5 +/- 1.3 eV (related to the Fermi level) measured for the dominant KL2L3(D-1(2)) spectrum line was found to be higher by 3.5 eV (2.5 sigma) than a value obtained from the X-ray induced spectra which is probably caused by the effects of chemical bonding and physico-chemical environment. Moreover, it is higher by 20.4 eV (16 sigma) than a prediction of the semi-empirical calculations by Larkins which indicates an influence of the %22atomic structure effect%22 on absolute energies of the Auger transitions following the electron capture decay and, possibly, some imperfections in the calculations. Good agreement of the measured and predicted KL1L2(P-3(0)/P-1(1)) transition intensity ratios indicates perceptible influence of the relativistic effects on the KLL Auger spectrum even at Z = 28.
  • The KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix was measured for the first time using a combined electrostatic electron spectrometer adjusted to a 7 eV instrumental resolution. Energies and relative intensities of the all nine basic spectrum components were determined and compared with data obtained from X-ray induced spectra of metallic Ni and with theoretical results as well. Absolute energy of 6562.5 +/- 1.3 eV (related to the Fermi level) measured for the dominant KL2L3(D-1(2)) spectrum line was found to be higher by 3.5 eV (2.5 sigma) than a value obtained from the X-ray induced spectra which is probably caused by the effects of chemical bonding and physico-chemical environment. Moreover, it is higher by 20.4 eV (16 sigma) than a prediction of the semi-empirical calculations by Larkins which indicates an influence of the %22atomic structure effect%22 on absolute energies of the Auger transitions following the electron capture decay and, possibly, some imperfections in the calculations. Good agreement of the measured and predicted KL1L2(P-3(0)/P-1(1)) transition intensity ratios indicates perceptible influence of the relativistic effects on the KLL Auger spectrum even at Z = 28. (en)
Title
  • The first experimental investigation of the KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix
  • The first experimental investigation of the KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix (en)
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  • The first experimental investigation of the KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix
  • The first experimental investigation of the KLL Auger spectrum of Ni generated in the electron capture decay of radioactive Cu-64 in a solid state matrix (en)
skos:notation
  • RIV/61389005:_____/12:00383925!RIV13-AV0-61389005
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  • I, P(GAP203/12/1896), P(LA08002)
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  • 234
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  • 136665
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  • RIV/61389005:_____/12:00383925
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  • atomic-structure; ec decay; relativity (en)
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  • DE - Spolková republika Německo
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  • [45223BFEA440]
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  • European Physical Journal D
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  • 66
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  • Filosofov, D. V.
  • Inoyatov, A. K.
  • Kovalík, Alojz
  • Perevoshchikov, L. L.
  • Gorozhankin, V. M.
  • Ryšavý, Miloš
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  • 000309466500015
issn
  • 1434-6060
number of pages
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  • 10.1140/epjd/e2012-20562-2
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