Double ionization of atomic oxygen by electron impact

Details Double ionization of atomic oxygen by electron impact Double ionization of atomic oxygen by electron impact

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982p%26ss...30..451z&link_type=abstract

Planetary and Space Science, vol. 30, May 1982, p. 451-456.

Other

13

Atmospheric Ionization, Electron Impact, Gas Ionization, Ionization Cross Sections, Oxygen Atoms, Atomic Excitations, Data Acquisition, Electron Energy, Environmental Laboratories, Ground State, Ionic Reactions, Thresholds, Upper Ionosphere

Scientific paper

Laboratory measurements of the cross-sections for double ionization of atomic oxygen by electrons are presented for energies from threshold to approximately 400 eV. A maximum cross-section of about 5.6 x 10 to the -18th sq cm is observed at an electron energy of approx. 200 eV. Absolute cross-sections are obtained from measurements of the ratio of the cross-sections for double and single ionization, coupled with absolute cross-sections for single ionization previously measured by other investigators. The possible effects of excited oxygen reactants are examined, and the reported cross-sections are considered to be characteristic of ground state oxygen atoms.

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