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Positive Ion Flux from a Low-Pressure Electronegative Discharge

Sheridan, T; Boswell, Roderick


We compute the flux of positive ions exiting a low-pressure, planar, electronegative discharge as a function of the negative ion concentration and temperature. The positive ions are modelled as a cold, collisionless fluid, while both the electron and negative ion densities obey Boltzmann relations. For the plasma approximation, the plasma edge potential is double-valued when the negative ions are sufficiently cold. When strict charge neutrality is relaxed, spatial space-charge oscillations are...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Plasma Sources Science and Technology
DOI: 10.1088/0963-0252/8/3/316


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