Published In

Journal of Physics B: Atomic, Molecular and Optical Physics

Document Type

Letter to the Editor

Publication Date

1990

Subjects

Helium -- Ionization, Ionization of gases, Electrons -- Capture

Abstract

The ratio of total double to total single ionisation cross sections, R, by high velocity projectiles containing electrons is examined in the first Born approximation. For ionisation of helium by H+, H0 and He0 impact, it is found that t filt H+ < filt Ho < filt Heo . Connection with Bohr's free-collision model for collisions with projectile electrons is given.

DOI

10.1088/0953-4075/23/9/003

Persistent Identifier

https://archives.pdx.edu/ds/psu/25883

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