Abstract:In this work, an experiment to examine the conditions under which a runaway electron beam moves not only toward the anode but also backward (to the space downstream of the cathode) was performed. For recording a backward runaway electron beam, a positive voltage pulse was applied to the high-voltage electrode of the gas diode. The breakdown of atmospheric pressure air gaps with a special cathode design at a rate of voltage rise of 10 14 V/s was studied with subnanosecond and picosecond time resolution. In the … Show more
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