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Searching for influence of the “atomic structure effect” on the KLL and LMM Auger transition energies of Zn (Z=30) and Gd (Z=64)

Author
Inoyatov A.Kh. JINR
Perevoshchikov L.L. JINR
Gorozhankin V.M. JINR
Kovalík Alojz, Ing. DrSc. Nuclear Physics Institute of the ASCR, JINR Dubna
Radchenko V.I. JINR
Filosofov D.V. JINR

Year
2011

Scientific journal
Journal of Electron Spectroscopy and Related Phenomena, 184 (8-10), 457-462

Web


Abstract
The absolute energies of the KL2L3(D-1(2)), KL3M2.3(P-3(0.2)), and L3M4M5((1)G(4)) transitions in Zn-67(30) from the EC decay of (67)(31)G a and from the beta(-) decay of Cu-67(29) and those of the KL2L3(1D2) and L3M4M5((1)G(4)) transitions in Gd generated in the EC decay of Tb-151.155.156 fraction and the beta(-) decay of (EU)-E-152.154.155 fraction as well were measured with use of the combined electrostatic electron spectrometer. The absolute energies of the KL2L3(D-1(2)) and L3M4M5((1)G(4)) transitions in Gcl following the EC decay were found to be higher by 13.9 +/- 0.9 and 16.3 +/- 0.3 eV. respectively, than those measured for the transitions initiated by the beta(-) decay. Much lower differences of 2.1 +/- 0.2, 2.4 +/- 0.2 and 1.6 +/- 0.2 eV between the EC and the beta(-) decay modes for the above mentioned transitions, respectively, were observed for Zn-67(30). Due to the uncertainties in the assumed chemical state of the studied isotopes generated by beta(-) decay and EC decay in different sources, contributions from the induced chemical shifts of the electron binding energies to the observed differences can be significant especially in the latter case. Despite this fact the finding corresponds to the results obtained in the X-ray studies of the "atomic structure effect" that the effect is the most pronounced for the 41 and Sf element groups. A comparison of the measured and calculated absolute Auger transition energies indicates that the electron configuration of Gd just after the EC decay can differ from that one supposed in the calculations.

Cite article as:
A. Inoyatov, L. Perevoshchikov, V. Gorozhankin, A. Kovalík, V. Radchenko, D. Filosofov, "Searching for influence of the “atomic structure effect” on the KLL and LMM Auger transition energies of Zn (Z=30) and Gd (Z=64)", Journal of Electron Spectroscopy and Related Phenomena, 184 (8-10), 457-462 (2011)