The role of photoionization in streamer discharge formation in voids

The role of photoionization in streamer discharge formation in voids

The crucial role of photoionization in the three-dimensional (3-D) formation of a streamer discharge in a void, filled with air, in an insulator, is demonstrated by performing calculations both with and without a 3-D treatment of photoionization. Secondary electron emission from the walls due to ion...

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Veröffentlicht in:IEEE transactions on plasma science 1999-02, Vol.27 (1), p.26-27
Hauptverfasser: Morrow, R., Blackburn, T.R.
Format: Artikel
Sprache:eng
Schlagworte:
Australia
Cathodes
Dielectric constant
Dielectrics and electrical insulation
Discharge
Electron mobility
Electrons
Fault location
Gas insulation
Insulators
Ion impact
Ionization
Mathematical analysis
Photoionization
Plasma
Poisson equations
Scientific imaging
Streamer formation
Surface discharges
Voids
Walls
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Beschreibung
Zusammenfassung:The crucial role of photoionization in the three-dimensional (3-D) formation of a streamer discharge in a void, filled with air, in an insulator, is demonstrated by performing calculations both with and without a 3-D treatment of photoionization. Secondary electron emission from the walls due to ion impact is found to be too slow to affect the initial streamer formation.
ISSN:0093-3813
1939-9375
DOI:10.1109/27.763010