Title :
On the effect of an axial magnetic field on the high-current vacuum arc
Author :
Keidar, M. ; Schulman, M.B.
Author_Institution :
Dept. of Aerosp. Eng., Michigan Univ., Ann Arbor, MI, USA
fDate :
2/1/2000 12:00:00 AM
Abstract :
Vacuum arcs in axial fields Bx are modeled as cathode-spot jets combining into a common current channel. The model provides a novel condition for the observed transition from the falling to the rising branch of arc voltage versus Hx. The smooth transition corresponds to the Bx for which the jet mixing occurs at the anode, on average. These two-dimensional calculations agree well with experiments
Keywords :
magnetic field effects; plasma jets; vacuum arcs; arc voltage; axial magnetic field; cathode-spot jets; high-current vacuum arc; jet mixing; two-dimensional calculations; Anodes; Cathodes; Collimators; Electrodes; Magnetic fields; Plasma density; Plasma properties; Two dimensional displays; Vacuum arcs; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
