Collision processes of electrons with molecular hydrogen ions
- 28 June 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (12) , 2043-2050
- https://doi.org/10.1088/0022-3700/12/12/022
Abstract
Collision processes of electrons with trapped ions of mass numbers 1, 2, 3, 5, 7, 10, 14 and 20 are investigated in the concentric electron-beam device. Trapping characteristics are measured and lead to the conclusion that all the ions in the trap are hydrogenic. Cross section functions for the electron impact dissociation of H2+, H3+ and H5+ are measured. The shape of the H2+ dissociation indicates that the molecular ions are trapped for a sufficiently long time for vibrational decay to upsilon =0 to occur. There is good agreement between the present low energy H3+ dissociation data and previous work. Dissociation cross sections for H5+ and the temperature dependence of the e-H5+ recombination rate are measured. The latter is in good agreement with previous room temperature data and facilitates the prediction of the recombination rate in the Jovian atmosphere.Keywords
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