Title :
Ionization–Recombination Front in High-Current Vacuum Arc
Author :
Schneider, A. ; Popov, S. ; Sandolache, G. ; Batrakov, A. ; Rowe, S.
Author_Institution :
Inst. of High-Current Electron. SB RAS, Tomsk, Russia
Abstract :
Stable plumes with a distinct and bright shell were observed at the anode of the high-current vacuum arc burning during 10 ms at a current of up to 15 kA in peak. Spectrum-resolved imaging reveals the shell to be emitted mostly by neutral atoms. A shell is surrounded by a diffuse halo emitted by ions. The shell nature can be interpreted in terms of formation of the ionization-recombination front in the place of impact of the cathode and anode plasmas.
Keywords :
arcs (electric); ion recombination; ionisation; plasma collision processes; plasma diagnostics; plasma transport processes; diffuse halo shell; high-current vacuum arc; ionization-recombination front formation; spectrum-resolved image analysis; stable plume analysis; time 10 ms; Anodes; Cathodes; Imaging; Ions; Plasmas; Vacuum arcs; High-current vacuum arc; vacuum circuit breakers;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2158590
