The KLL Auger spectrum of neon from the EC-decay of 22Na

The low energy KLL Auger electrons of neon emitted after EC-decay of Na-22 have been investigated with a 4 eV instrumental resolution using an electrostatic spectrometer and a solid state radioactive source. This is the first experimental investigation of the KLL Auger spectrum of neon from the solid state. Relative intensities and energies of all resolved spectrum components were determined. Measured absolute energy of the dominant KL2L3(D-1) transition was found to be 824.5(19) eV, i.e. about 20eV higher than that obtained in experiments with free Ne atoms. Within the experimental uncertainties, no influence of solid state effects on relative intensities of the KLL transitions was found. (c) 2006 Elsevier B.V. All rights reserved.