Charge exchange to the continuum for light ions in solids
- 1 February 1974
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 7 (2) , 269-287
- https://doi.org/10.1088/0022-3700/7/2/012
Abstract
Electron capture into ionized states of fast ions (H+, H2+, He+) in carbon and gold foils is investigated. Velocity of ejected electrons are measured in the forward direction and a characteristic cusp-shaped peak is found for electrons ejected with velocity equal to that of the incoming ions. The spectra are interpreted by a theory of charge exchange to the continuum, based on an atomic physics ion-atom collision model. As with proper charge exchange, a second order Born approximation is necessary to calculate the high energy cross sections.Keywords
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