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- W3146096156 abstract "The secondary ion emission due to primary ion bombardement is a process used very often in experimental work in surface physics, though the theoretieal description of the ionization phenomena of the sputtered particles is far from being complete. The reason for this is rather obvious: a number of different physical mechanisms may contribute to the ion emission depending on the circumstances and the investigated models are always crude over-simplifications of any experimental situation investigated until now. One of the authors proposed a possible physical mechanism, the pseudoatom approximation [1], a few years ago and one-dimensional approximate calculations were also published using step-potential model for some pure metals [2]. Compiling available experimental resuhs from the literature the agreements and the inherent limits of this simple model were investigated and recently published [3]. In the present p a p e r a more realistic potential is used based on the electron densities calculated numerically by LAI~G [4] for jellium. Using the step potential and the pseudo-atom model the ionization probability R + was given [3] as {k I __ k2 12 R+ = ~ T ~ ) ' (1)" @default.
- W3146096156 created "2021-04-13" @default.
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- W3146096156 date "2009-01-01" @default.
- W3146096156 modified "2023-09-27" @default.
- W3146096156 title "FURTHER STUDIES ON THE SECONDARY ION EMISSION OF PURE METALS USING THE PSEUDO-ATOM METHOD*" @default.
- W3146096156 hasPublicationYear "2009" @default.
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