Triple differential cross section for the ionisation of helium by electronic impact
- 28 November 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (22) , 4467-4479
- https://doi.org/10.1088/0022-3700/13/22/019
Abstract
Using distorted waves for the incident, scattered and ejected electrons, and including polarisation effects triple differential cross sections are calculated for the ionisation of helium by the impact of electrons in the range 80 to 105 eV and compared with experimental data. The shapes obtained for the ejected-electron angular distribution agree well with one previous theoretical calculation, but disagree with another. The results are not particularly sensitive to the description used for the incident electron and target, nor to the inclusion of polarisation and static exchange potentials when calculating the scattered electron wavefunction.Keywords
This publication has 15 references indexed in Scilit:
- Distorted-wave approximations for the triple-differential cross section for ionisation of helium by electron impactJournal of Physics B: Atomic and Molecular Physics, 1978
- Measurements of the triple-differential cross section for low-energy electron-impact ionization of heliumPhysical Review A, 1978
- Triple-differential cross sections for electron-impact ionization of heliumPhysical Review A, 1977
- Triple-differential three-dimensional cross sections for low-energy electron impact ionization of heliumJournal of Physics B: Atomic and Molecular Physics, 1977
- Many-body Green's function theory of electron impact ionization: coincident ionization of heliumJournal of Physics B: Atomic and Molecular Physics, 1976
- Differential cross sections for electron impact ionization of heliumPhysical Review A, 1974
- Electron impact excitation of H and He+. I. 1s to ns transitionsJournal of Physics B: Atomic and Molecular Physics, 1973
- The capture amplitude for the ionization of He by electron impactJournal of Physics B: Atomic and Molecular Physics, 1973
- Collisional ionization of helium by slow electronsJournal of Physics B: Atomic and Molecular Physics, 1972
- The evaluation of slowly converging radial integrals occurring in atomic collision problemsJournal of Physics B: Atomic and Molecular Physics, 1968