Differential study of H--inert-gas collisions
- 28 March 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (6) , 1049-1067
- https://doi.org/10.1088/0022-3700/11/6/016
Abstract
H- scattering by He, Ne and Ar in the 0.08-2.0 keV energy range has been studied. The energy-loss spectra of scattered particles were obtained using the time-of-flight method and electrostatic analysis. Reduced differential cross sections for elastic and inelastic processes are reported. The dominant inelastic process is single-electron detachment which has a very low angular threshold. Strong inelastic processes leading to H-atom excitation are observed. The weakly bound electron of H- can be treated independently of the molecular (H-inert-gas atom) core and the theoretical differential cross sections of H--inert-gas collisions can then be obtained by multiplying the appropriate H-inert-gas cross section by the detachment or survival probability for the outer electron calculated by Devdariani, (1972), in the 'zero-radius potential' approximation.Keywords
This publication has 11 references indexed in Scilit:
- Excitation of hydrogen atoms by collision with helium atoms (0.3-1.5 keV)Journal of Physics B: Atomic and Molecular Physics, 1976
- Electron detachment from negative ions: The effects of isotopic substitutionPhysical Review A, 1976
- Direct and exchange processes in ion-atom collisions. I. He+-HeJournal of Physics B: Atomic and Molecular Physics, 1975
- Absolutedetachment cross sectionsPhysical Review A, 1974
- Electron detachment in low-energy collisions ofandwith HePhysical Review A, 1974
- Energy spectra of collisionally producedautodetaching statesPhysical Review A, 1974
- Extension of the Electron-Promotion Model to Asymmetric Atomic CollisionsPhysical Review A, 1972
- Hydrogen Charge Fractions from Collisions ofon HePhysical Review Letters, 1972
- Interactions of H— Ions and H Atoms with Ne, A, and H2The Journal of Chemical Physics, 1958
- Inelastic collisions between ions and atomsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952