Electron-loss cross sections have been calculated for fully stripped ions with charge states +1 to +100 colliding with helium atoms in the energy range 100 1000 kev/amu. The classical-trajectory Monte Carlo method was used along with a model of the helium atom with two active electrons. The reactions studied were single and double ionization, single- and double-electron capture, and electron capture plus ionization. Cross sections for the single-electron-removal reactions agree well with experimental data. Double-electron-removal cross sections are in qualitative agreement with experimental results. The n-level distributions following electron capture show that the electron-capture plus ionization and double electron-capture processes are peaked at a lower n level relative to single-electron capture. © 1988 The American Physical Society.
A. E. Wetmore and R. E. Olson, "Electron Loss From Helium Atoms By Collisions With Fully Stripped Ions," Physical Review A, vol. 38, no. 11, pp. 5563 - 5570, American Physical Society, Jan 1988.
The definitive version is available at https://doi.org/10.1103/PhysRevA.38.5563
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01 Jan 1988