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Plasma-sheath effects on the Debye screening problem
Sarmah, D, Salimullah, M, Tessarotto, M
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Abstract
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.