Non-linear screening of neon and argon impurities in dense, hot hydrogen plasmas
- 14 September 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (17) , 3617-3626
- https://doi.org/10.1088/0022-3700/17/17/029
Abstract
Non-linear screening effects of neon and argon impurities in dense, hot hydrogen plasmas (T approximately 200 eV, Ne approximately 1024 cm-3) are investigated using the temperature-dependent density functional method. The results are compared with corresponding linear screening (Debye-Huckel and RPA) calculations. The drastic differences in the results reveal the complete inadequacy of linear response theories (Debye and RPA screening) in these ranges of densities and temperatures. The usefulness of such non-linear self-consistent screening models is discussed.Keywords
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