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Experimental Investigation on the Vacuum Arc Behaviors of the Axial Magnetic Field (AMF) Electrode with Single Coil Structure
In this paper, the in‰uence of arc current on vacuum arc behaviors of a new AMF electrode with single coil structure was investigated at long gap distance of 40 mm. A high-speed charge couple device (CCD) video camera was used to observe the arc behaviors. Two groups of arc modes were featured: 1) diŠuse arc modes including multi-cathode spots arc, high current diŠuse arc and high current diŠuse column arc. 2) constricted arc modes including anode plasma jet with local concentration of manydoi:10.3131/jvsj.50.349 fatcat:tas6jr3xbrcbvgfnjr2mxyggam