Double ionisation of Ar atoms by single electron impact
- 14 February 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (3) , 587-603
- https://doi.org/10.1088/0022-3700/20/3/020
Abstract
With the aid of translational energy spectroscopy the authors have studied the double ionisation of Ar by single electron impact at collision energies between threshold and 600 eV. On the one hand the authors have determined the total cross section for double ionisation, sigma t, and on the other hand they have measured, for the first time, apparent partial cross sections for production of Ar2+ in specific long-lived states: 3P, 1D2, 1S0, 5Ddegrees 4 and 3Fdegrees 4. The experimental setup, the principle of the applied method and the evaluation procedure are described. Where possible the results are compared with other experimental results, yielding rather good agreement.Keywords
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