The first observation of all the basic components of the KLL Auger spectrum of Sm generated in the radioactive decay of 147,148,149Eu atoms in a solid state source

▶ The Sm KLL Auger spectrum from the 147,148,149Eu EC decay was measured. ▶ The KLL transition energies and intensities were determined for all 9 components. ▶ Energy of 32627.3 ± 1.4 eV was determined for the KL2L3(1D2) component. ▶ An influence of the “atomic structure effect” on the KLL energies is revealed. ▶ An influence of the relativistic effects on the KL1L2(3P0) transition intensity is proved.