Density effects on collisional rates and population kinetics.

Details Density effects on collisional rates and population kinetics. Density effects on collisional rates and population kinetics.

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jqsrt..58..637i&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 58, issue 4-6, pp. 637-643

Computer Science

3

Plasma: Atomic Processes

Scientific paper

Although detailed quantum kinetic theory calculations obtained large plasma effects on electron collisional rates, population kinetics calculations indicate that the main impact of the density on non-equilibrium plasma models is continuum lowering. Density effects beyond continuum lowering lead to significantly smaller corrections on level populations and are uncertain since usual approximations may introduce behavior. These kinetics calculations take advantage of simple approximations to the electron collisional rates that compare reasonably well with the quantum kinetic theory results. Finally, the analysis indicates that since continuum lowering already included in standard kinetics models, the expected impact on level populations from the quantum kinetic theory results may not be realized.

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