Screening effects in secondary electron production by equal velocity H+, H+2, He+, He++ions |
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Authors: | R.H. McKnight R.G. Rains |
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Affiliation: | Department of Physics, University of Virginia, Charlottesville, VA 22901, USA |
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Abstract: | Electron spectra produced by equal velocity (0.75 MeV/amu) H+, H+2, He+ and He ++ ions are shown. Screening effects are observed for He+ ions but not for H+2. He++ cross sections scale like Z2 = 4 when compared to H+ cross sections. |
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