Fig. 12

Plasma parameters calculated by the three models: a) Neutral gas density n₀, and bulk electron density n₊ in the center of the discharge as function of the injected mass flow and b) electron energy k_BT_e/e. While the electron density determined by the 0D model is assumed to be radially homogeneous, for both the 2D and 3D model, the electron density profile is maximal in the center of the discharge, as shown by the insert