@article {INOYATOV201861,
	title = {The experimental investigation of weak effects in the KLL Auger electron spectrum of Zr and Nb generated in radioactive decay},
	journal = {Journal of Electron Spectroscopy and Related Phenomena},
	volume = {229},
	year = {2018},
	pages = {61 - 67},
	abstract = {The KLL Auger electron spectra of Zr (Z = 40) and Nb (Z = 41) following respectively the electron capture (EC) decay of 90Nb and the de-excitation of the isomeric state of 91mNb were investigated in detail using a combined electrostatic electron spectrometer and radioactive sources prepared by surface sorption on a polycrystalline carbon substrate. For both elements, energies, relative intensities, and natural widths of all the nine well-resolved basic spectrum components were determined and compared with theoretical predictions and with results of previous measurement as well. Results of our ab initio multiconfiguration Dirac-Hartree-Fock calculations are discussed also in relation to the solid-state effect. Indications of an influence of the EC decay on the absolute energy of the KL2L3(1D2) transition (so-called atomic structure effect) in Zr were found. The effect of the retarded current-current interaction on the KL1L2(3P0) transition intensity was observed to be appreciable for the investigated elements in accordance with the prediction.},
	keywords = {Atomic structure effect, KLL Auger transitions, Multiconfiguration Dirac-Hartree-Fock calculations, Nb, ZR},
	issn = {0368-2048},
	doi = {https://doi.org/10.1016/j.elspec.2018.08.004},
	url = {http://www.sciencedirect.com/science/article/pii/S0368204818301208},
	author = {А.Kh. Inoyatov and A. Koval{\'\i}k and L.L. Perevoshchikov and D.V. Filosofov and J. Ekman and D. V{\'e}nos and T.M. Muminov and V. Radchenko and V.S Zhdanov}
}
