Collisions between electrons and H2+ions. IV. Measurements of cross sections for dissociative ionization
- 1 November 1973
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 6 (11) , 2409-2414
- https://doi.org/10.1088/0022-3700/6/11/036
Abstract
For pt.III, see abstr. A64132 of 1972. Cross sections for the dissociative ionization of H2+ by electron impact have been measured for interaction energies below 940 eV. A source was used which produced H2+ ions under clearly defined conditions. The cross section attained a maximum value of 0.2 pi a02 at 103 eV which is in fairly good agreement with classical predictions by Alsmiller (1962) and Mathur et al. (1970). A Bethe plot of the results rolls over in a way which suggests that the Bethe approximation will only be valid for this reaction for energies of at least several hundred eV.Keywords
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