Measurement of the cross section for electron impact ionization of multi-electron ions. II. N2+to N3+and C+to C2+
- 1 September 1971
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 4 (9), 1189-1199
- https://doi.org/10.1088/0022-3700/4/9/008
Abstract
For pt. I, see ibid., vol. 4, 1176, 1971. Absolute measurements have been made of the electron impact ionization cross sections for the reaction N2++e to N3++2e and its isoelectronic partner C++e to C2++2e. The technique of crossed beams was employed. Measurements were extended to energies below threshold and the presence of metastable ions observed; their influence upon the measured cross sections is discussed. The present experimental data is compared with Coulomb-Born calculations by Moores, classical binary encounter calculations by Thomas and Garcia, and a semiempirical estimate by Lotz.Keywords
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