Collision processes of electron with molecular hydrogen ions

Details Collision processes of electron with molecular hydrogen ions Collision processes of electron with molecular hydrogen ions

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jphb...12.2043m&link_type=abstract

Journal of Physics B - Atomic and Molecular Physics, vol. 12, June 28, 1979, p. 2043-2050.

Physics

14

Dissociation, Electron Scattering, Electron-Ion Recombination, Hydrogen Ions, Ionic Collisions, Molecular Ions, Electron Beams, Jupiter Atmosphere, Molecular Relaxation, Planetary Ionospheres, Scattering Cross Sections, Temperature Effects, Trapped Particles

Scientific paper

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 H(2+), H(3+) and H(5+) are measured. The shape of the H(2+) dissociation function indicates that the molecular ions are trapped for a sufficiently long time for vibrational decay to v = 0 to occur. There is good agreement between the present low energy H(3+) dissociation data and previous work. Dissociation cross sections for H(5+) and the temperature dependence of the e-H(5+) 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 ionosphere.

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