Abstract

Evolution of electrostatic plasma double layers is simulated in a 1-D Vlasov model with novel boundary conditions, in which the double layer forms part of an RL circuit. The double layer develops from the non-linear stage of a convective, current-driven instability. Its evolution is characterized by strong trapping of both ions and electrons; ion heating appears to play a prominent role in the intermediate stages of development. Results are discussed for two cases: (i) L → ∞ (constant-current); and (ii) L/R = the ion transit time.

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