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Open Physics
|
2009
|
vol. 7
|
issue 1
123-129
EN
A 2-D computer simulation of a coaxial plasma device depending on the conservation equations of electrons, ions and excited atoms together with the Poisson equation for a plasma gun is carried out. Some characteristics of the plasma focus device (PF) such as critical wave numbers a c and voltages U c in the cases of various pressures Pare estimated in order to satisfy the necessary conditions of traveling particle densities (i.e. plasma patterns) via a linear analysis. Oscillatory solutions are characterized by a nonzero imaginary part of the growth rate $$ \Im $$(σ) for all cases. The model also predicts the minimal voltage ranges of the system for certain pressure intervals.
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