Title :
High-Pressure Diffuse and Spark Discharge in Nitrogen and Air in a Spatially Nonuniform Electric Field of High Intensity
Author :
Lomaev, Mikhail I. ; Tarasenko, Victor F. ; Sorokin, Dmitri A. ; Rybka, Dmitri V.
Author_Institution :
Lab. of Opt. Radiat., Tomsk, Russia
Abstract :
Runaway-electron-preionized (REP) diffuse discharges are very attractive in many applications. It was found that, in the case of a cathode with a small radius of curvature and a flat anode, a diffuse corona arises within several hundreds of picoseconds at the early stage of the REP discharge. Both diffuse and spark discharges in dependence on the cathode-anode distance, type, and pressure of gas were observed. Images of REP diffuse and spark discharge plasma glowing in air, nitrogen, and its mixture with methane at different pressures are presented.
Keywords :
air; corona; nitrogen; plasma diagnostics; plasma transport processes; sparks; N; O2; cathode; cathode-anode distance; diffuse corona; flat anode; high-pressure diffuse discharge; methane; plasma images; runaway-electron-preionized diffuse discharges; spark discharge; spatially nonuniform electric field; Discharges; Fault location; Nitrogen; Plasmas; Sparks; X-rays; Diffuse discharge; gas discharge devices; high-voltage techniques; spark discharge; spontaneous emission;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2159390
