Vlasov Poisson solver for density enhancement near ions in magnetized electron plasmas
A common feature of recent experiments on ion-electron recombination is an enhancement of the recombination rate with respect to the standard theory of recombination. The favored approach is the examination of the strongly nonlinear density enhancement near the ion in the magnetized electron plasma, which under experimental conditions is well described by the Vlasov Poisson equation. We present a numerical method on the grid applicable to arbitrarily large disturbances from equilibrium. The excess recombination rate is studied as a function of various experimental parameters such as, e.g., ion velocity and charge. The observed features are explained qualitatively in agreement with the experiments. (C) 2002 Elsevier Science B.V. All rights reserved.
vlasov poisson equation electron-ion recombination electron cooler