Observation of the Plasma Plume at the Anode of High-Current Vacuum Arc

Stable and bright plumes with a distinct and bright shell are observed at the anode of the high-current vacuum arc burning during 10 ms at a current of up to 15 kA in peak. A plume is attached to a hot spot at the anode. The substance inside a plume is almost dark. Light from a plume shell is emitte...

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