On the behaviour of the (e, 3e) total cross section for helium at high and intermediate energies
(2005) Journal of Physics B: Atomic, Molecular and Optical Physics — Vol. 38, n° 8, p. 1261-1277 (2005)
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- Authors
Defrance, Pierre 
- Abstract
- Applying the animated beam method the total cross sections (TCS) for double ionization (DI) of helium by electrons are measured in the collision energy region from threshold to 3 keV. The TCS for the same process are calculated at intermediate and high incident energies in the first Born approximation (FBA). The radial and angular correlations between the bound electrons and repulsion between the ejected electrons are accounted. In order to go beyond the FBA the scattered electron is considered as a particle being in the Coulomb field of the nucleus, the charge of which is screened by the ejected electrons. On the basis of the obtained results some conclusions concerning the behaviour of the TCS in the intermediate and high-energy regions are drawn.
- Affiliations
Citations
Bahati, E., Cherkani-Hassani, H., Defrance, P., Jureta, J., Kereselidze, T., Machavariani, Z., & Noselidze, I. (2005). On the behaviour of the (e, 3e) total cross section for helium at high and intermediate energies. Journal of Physics B: Atomic, Molecular and Optical Physics, 38(8), 1261-1277. https://doi.org/10.1088/0953-4075/38/8/015 (Original work published 2005)