Doubly differential cross sections of secondary electrons ejected from molecular oxygen by electron impact
- 1 March 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 43 (5) , 2300-2305
- https://doi.org/10.1103/physreva.43.2300
Abstract
A measurement of the doubly differential cross sections of secondary electrons ejected from molecular oxygen by electron impact has been made. A modulated crossed-beam method was used with incident electron energies from 25 to 250 eV. The energy and angular range of secondary electrons covered from 1.0 eV to one-half of the difference between the incident energy and ionization potential and from 12° to 156°, respectively. The present results have been compared with the previous measurements and considerable discrepancies were found.Keywords
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