4 research outputs found
Non-linear charge reduction effect in strongly-coupled plasmas
The charge reduction effect, produced by the nonlinear Debye screening of
high-Z charges occuring in strongly-coupled plasmas, is investigated. An
analytic asymptotic expression is obtained for the charge reduction factor
which determines the Debye-Hueckel potential generated by a charged test
particle. Its relevant parametric dependencies are analyzed and shown to
predict a strong charge reduction effect in strongly-coupled plasmas.Comment: 4 figure
Plasma-sheath effects on the Debye screening problem
The classical Debye-H\"{u}ckel screening effect of the electrostatic field generated by isolated charged particles immersed in a plasma is reviewed. The validity of the underlying mathematical model, and particularly of the weak-field approximation, are analyzed. It is shown that the presence of the plasma sheath around test particles and the resulting effect of charge screening are essential for the description of plasmas which are strongly coupled