Neutralization of low energy He + ions by Cu in the Auger regime


Neutralization of light He ions in backscattering geometry is studied on a single crystalline Cu(100) and on a poly crystalline Cu-poly surfaces by means of direct comparison of the ion yields. Below 2 keV neutralization is only restricted to the Auger transition involving two electrons. Measurements in this regime revealed a ~35% higher ion fraction for… (More)

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