Title :
Electron temperature in the expanding cathode plasma jet in a vacuum arc
Author :
Beilis, I.I. ; Keidar, M.
Author_Institution :
Electr. Discharge & Plasma Lab., Tel Aviv Univ., Israel
Abstract :
The electron temperature distribution in the expanding plasma jet from the group spot in 2D approximation is calculated. The model considers spot currents of about 100 A and the spot (initial) electron temperature of about 2 eV. Effects of the self- and axial magnetic field are studied. Two cases, namely individual single jet from the cathode spot and high current column are considered. The calculations for both cases show that the plasma temperature increases by a factor of 1.5 in comparison to the initial electron temperature in the spot.
Keywords :
approximation theory; cathodes; magnetic fields; plasma flow; plasma jets; temperature distribution; vacuum arcs; 100 A; 2 eV; 2D approximation; axial magnetic field; electron temperature distribution; expanding cathode plasma jet; high current column; self-magnetic field; vacuum arc; Cathodes; Electrons; Magnetic field measurement; Magnetic fields; Plasma density; Plasma materials processing; Plasma measurements; Plasma temperature; Temperature distribution; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027427
