Density profiles
Cold discharge plasmas - Electrical properties
Article REF: D2830 V1
Density profiles
Cold discharge plasmas - Electrical properties

Authors : Anne-Marie POINTU, Jérôme PERRIN, Jacques JOLLY

Publication date: February 10, 1998 | Lire en français

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2. Density profiles

On the scale of a laboratory discharge, homogeneity of charged species concentrations is never achieved, due to the presence of walls or objects immersed in the plasma. In fact, these influence the n e (r) and n i (r) profiles both in the electrically neutral zone

(ne(r)=ni(r))( 10 )
and in their immediate vicinity, where space charge sheaths are created (ne(r)≠ni(r))...

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