Air breakdown at pressures 20-500 torr was studied in a needle-and-plane electrode configuration with rectangular voltage pulses applied to the gap. Depending on the needle tip polarity, a cathode or anode spot is produced during the first few nanoseconds and the discharge burns in the form of a diffuse channel with a spot on the tip electrode. The contraction process is connected with the growth of spark channels from the cathode and anode spots.
|Number of pages||3|
|Journal||Soviet physics. Technical physics|
|Publication status||Published - Apr 1980|
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