Mutual impedance experiments in a laboratory plasma - Experimental validation of numerical modeling

Open Access

Fig. 10

Comparison results of the mutual impedance and Langmuir probe. Top: ratio of the plasma density $n_{e}^{L P} (n_{e}^{M I})$ $Mathematical equation: $\[n_{e}^{L P}\left(n_{e}^{M I}\right)\]$$ and electron temperature $T_{e}^{L P} (T_{e}^{M I})$ $Mathematical equation: $\[T_{e}^{L P}\left(T_{e}^{M I}\right)\]$$ measured with the Langmuir probe (mutual impedance experiment) as a function of the ionization current I_i (experimental proxy for the plasma density). Bottom: same data shown as $n_{e}^{M I}$ $Mathematical equation: $\[n_{e}^{M I}\]$$ vs. $n_{e}^{L P}$ $Mathematical equation: $\[n_{e}^{L P}\]$$ (left) and $T_{e}^{M I}$ $Mathematical equation: $\[T_{e}^{M I}\]$$ vs. $T_{e}^{L P}$ $Mathematical equation: $\[T_{e}^{L P}\]$$ (right).

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