Spin exchange collision cross sections for fast hydrogen atoms incident on hydrogen or alkali atoms
- 28 November 1985
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 18 (22) , 4433-4444
- https://doi.org/10.1088/0022-3700/18/22/012
Abstract
Spin exchange cross sections have been calculated for hydrogen atoms with energy in the keV range incident on hydrogen or alkali-atom targets. The cross sections generally decrease with increasing energy, but also show oscillations as a function of the energy. For a hydrogen atom with an energy of 5 keV incident on a Na atom target, the total spin exchange cross sections is 1.2*10-15 cm2. The effect of spin exchange collisions on an optically pumped polarised H- ion source is analysed.Keywords
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