Experimental investigation of ligand effects on the conversion electron spectrum of the 22.5 keV M1 + E2 nuclear transition in 149Sm

  • A. Kh. InoyatovEmail author
  • L. L. Perevoshchikov
  • A. Kovalík
  • O. Dragoun
  • D. V. Filosofov
Regular Article - Experimental Physics


The conversion electron spectrum of the 22.5keV M1 + E2 nuclear transition in 149Sm from the electron capture decay of 149Eu was experimentally studied for the “Eu2O3” and “EuF3” compounds in which 149Eu ions have the same assumed oxidation number +3 . While the energies of the L, M, N, O, and P1 conversion lines for “EuF3” were lower, on average, by 1.7(1), 2.7(2), 2.3(3), 4.1(2), and 5.7(9)eV, respectively, than those for “Eu2O3”, no changes between the two ligand complexes were observed for relative intensities of the conversion lines and their natural widths within the error limits.


Conversion Electron Nuclear Transition Electron Binding Energy Natural Width Conversion Line 
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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • A. Kh. Inoyatov
    • 1
    • 2
    Email author
  • L. L. Perevoshchikov
    • 1
  • A. Kovalík
    • 1
    • 3
  • O. Dragoun
    • 3
  • D. V. Filosofov
    • 1
  1. 1.Laboratory of Nuclear ProblemsJINRDubna, Moscow RegionRussian Federation
  2. 2.Institute of Applied PhysicsNational UniversityTashkentRepublic of Uzbekistan
  3. 3.Nuclear Physics Institute of the ASCRŘež PragueCzech Republic

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