Calculation of electron scattering on the He+ion
- 14 December 1993
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 26 (23), L831-L836
- https://doi.org/10.1088/0953-4075/26/23/006
Abstract
We apply the convergent close-coupling method to the calculation of electron scattering on the ground state of He+. It is shown that the inclusion of the treatment of the continuum, even below the ionization threshold, significantly reduces the calculated 2S cross section. We generally find good agreement with the measurements of the 2S excitation cross section, though in the vicinity of a few eV near threshold our results are characteristically higher than the experiment. Complete quantitative agreement is obtained with the measurement of the total ionization cross section from threshold to 700 eV.Keywords
This publication has 15 references indexed in Scilit:
- Calculation of the total ionization cross section and spin asymmetry in electron-hydrogen scattering from threshold to 500 eVPhysical Review Letters, 1993
- Convergent close-coupling calculations of electron-hydrogen scatteringPhysical Review A, 1992
- Coupled-channels optical calculation of electron-hydrogen resonancesPhysical Review A, 1992
- Explicit demonstration of the convergence of the close-coupling method for a Coulomb three-body problemPhysical Review Letters, 1992
- Electron collision strengths for all transitions among the n=1, 2, 3, 4 and 5 levels of He+Journal of Physics B: Atomic, Molecular and Optical Physics, 1991
- Crossed beam measurement of absolute cross sections: an alternative method and its application to the electron impact ionisation of He+Journal of Physics B: Atomic and Molecular Physics, 1981
- A measurement of cross sections for the 1S-2S excitation of He+ions by electron impactJournal of Physics B: Atomic and Molecular Physics, 1973
- The excitation of He+ by electron impactJournal of Physics B: Atomic and Molecular Physics, 1969
- Close-Coupling Calculations of Electron-Impact Excitation of theState and Autoionization Below theLevel inPhysical Review Letters, 1967
- A measurement of the cross section for production of He + (2 S ) ions by electron impact excitation of ground state helium ionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1966