J. Das et R. Morgenstern, ABOVE-SURFACE AND BELOW-SURFACE ELECTRON-EMISSION FROM MULTIPLY-CHARGED IONS INTERACTING WITH METAL-SURFACES, Journal of physics. Condensed matter, 5, 1993, pp. 255-256
Energy spectra of electrons ejected during collisions of H-like nitrog
en and bare carbon ions on a Ni surface are analysed. It is found that
at most 10% of the KLL Auger electrons are emitted from above the sur
face.