DMCA
NON LINEAR EFFECTS IN ION INDUCED ELECTRON EMISSION
BibTeX
@MISC{Schiwietz_nonlinear,
author = {G. Schiwietz and G. Schiwietz and Bereich Festkörperphysik},
title = {NON LINEAR EFFECTS IN ION INDUCED ELECTRON EMISSION},
year = {}
}
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Abstract
High-resolution zero-degree electron spectra, total electron yields as well as Auger-electron spectra have been taken for 5 MeV/u ions (N7+, S13+, Ni23+, and Ag37+) penetrating carbon and insulator foils at normal incidence. A shift of the convoy-electron velocity with respect to the experimentally determined projectile velocity is found. For the carbon target, there is an acceleration of convoy electrons, whereas for the insulating targets, there is a deceleration of convoy-electrons as well as a deceleration of target-Auger electrons. These experimental findings are compared to theoretical estimates for dynamic ion-induced potentials. Key Words: Electron yields, Auger spectra, convoy electrons, non-linear effects, nuclear-track potential, electron recombination, image potential, Coulomb explosion. *Address for correspondence:
Keyphrases
convoy electron total electron yield auger spectrum high-resolution zero-degree electron spectrum experimental finding dynamic ion-induced potential electron recombination insulating target electron yield insulator foil convoy-electron velocity nuclear-track potential theoretical estimate target-auger electron mev ion normal incidence carbon target coulomb explosion image potential auger-electron spectrum key word projectile velocity non-linear effect
