Helium Excitation Cross Sections near Threshold

15 June 1957

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 106 (6) , 1182-1185
https://doi.org/10.1103/PhysRev.106.1182

Abstract

The cross section for excitation by incident electrons of the

{}^{3}S_{1} (1 s, 2 s)

metastable level of He has been fitted by using a Breit-Wigner one-level formula. The fit is very good. The significance of this result and its bearing on the energy dependence of the cross section near threshold are discussed.

Keywords

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