The effect of Lyman alpha self-absorption on population inversions between quantum states 2 and 3 of hydrogen-like ions in recombining plasmas
- 14 March 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (5) , L157-L161
- https://doi.org/10.1088/0022-3700/11/5/009
Abstract
The effect in recombining plasmas of Lyman alpha self-absorption on quasi-steady-state population inversions between quantum states n=2 and 3 of hydrogen-like ions is theoretically investigated. It is shown how the electron density range over which population inversion is possible diminishes as Lyman alpha self-absorption increases. The highest degree of absorption which can be tolerated and still achieve an inversion is shown to occur when the thermal limit corresponds to n approximately=4. The results of the computations are related to the conditions to be found in the expansion plume of laser-produced plasmas.Keywords
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