Modeling of Cathode Plasma Flare Expansion

A kinetic 1-D model of cathode plasma flare expansion to the interelectrode vacuum gap was developed. The kinetic model is a model of 1D3V particle-in-cell and direct simulation Monte Carlo type. The model takes into account the main types of elastic and inelastic collisions of particles in the plas...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2013-08, Vol.41 (8), p.1964-1968
Main Authors: Shmelev, Dmitry L., Barengolts, Sergey A.
Format: Article
Language:English
Subjects:
Cathode spot
Cathodes
Current density
Evaporation
Ions
Kinetics
Monte Carlo methods
Monte Carlo modeling
Monte Carlo simulation
Plasma physics
plasma sheath
Plasma sheaths
vacuum arc
Vacuum arcs
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Summary:A kinetic 1-D model of cathode plasma flare expansion to the interelectrode vacuum gap was developed. The kinetic model is a model of 1D3V particle-in-cell and direct simulation Monte Carlo type. The model takes into account the main types of elastic and inelastic collisions of particles in the plasma as well as evaporation and thermofield electron emission from the cathode. The model treats the plasma flare expansion and the electron emission from the outer plasma boundary of the flare self-consistently. The plasma characteristics of the cathode flare obtained with the model are in a reasonable agreement with known experimental results.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2013.2244921