X-RAY-SPECTRA AND AUGER-SPECTRA FROM MULTICHARGED IONS INTERACTING WITH SURFACES AND SOLIDS

Low and high resolution X-ray spectra of the K-alpha satellites emitted from Multi Charged Ions (MCIs) in collisions with surfaces at variable vertical velocity allow for the first time to differentiate between X-rays emitted from ions inside the bulk and from ions experiencing a pure surface interaction. Another proof for the bulk interaction at high vertical velocity is the first observation of the two electron - one photon double K-alpha (or K-alpha-alpha) emission with low energy MCIs. Auger-electron spectra emitted from hydrogenlike MCIs approaching a surface at very low velocities unveil new aspects of the atomic dynamics in front of the surface which may require the revision of previous models.