ELECTRON CAPTURE BY SLOW SINGLY CHARGED HELIUM IONS IN HELIUM

1 January 1954

journal article
Published by Canadian Science Publishing in Canadian Journal of Physics

Vol. 32 (1) , 60-64
https://doi.org/10.1139/p54-006

Abstract

The capture of electrons by slow singly charged helium ions passing through helium gas is discussed theoretically. Calculations of the capture cross section for incident ion energies from 200 ev. to 100 kev. are made using an impact parameter method due to Kohn. In this energy interval the computed cross section is found to be fitted very closely by the empirical expression (σ/πa₀²) = 7.94 – 2.35 log₁₀E(kev.). The results are compared with recent experimental data. The agreement between theory and experiment is good, except for the data of Keene.

Keywords

CHARGED PARTICLES
CROSS SECTION

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