Title :
High current density spotless vacuum arc as a glow discharge
Author :
Puchkarev, V.F. ; Boehkarev, M.B.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
Vacuum discharge burning between a broad cathode and a point anode made of Mo, Cu and Cd has been studied. This discharge operates in anode vapors and shows major arc characteristics, though no craters were examined on the cathode. The secondary electron emission is involved to explain current transport within the cathode region. This discharge is interpreted as a high density low voltage glow discharge. Having discussed the present and previous findings, the conclusion has been drawn that the secondary electron emission and “hump of potential” are dominant in the vacuum arc cathode spot
Keywords :
anodes; cadmium; cathodes; copper; electron field emission; glow discharges; molybdenum; secondary electron emission; vacuum arcs; Cd; Cd anode; Cu; Cu anode; Mo; Mo anode; anode vapors; arc characteristics; broad cathode; current transport; glow discharge; high current density spotless vacuum arc; high density low voltage glow discharge; hump of potential; point anode; secondary electron emission; vacuum discharge burning; Anodes; Atomic measurements; Cathodes; Current density; Electrodes; Electron emission; Glow discharges; Low voltage; Surface discharges; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545340
