Oscillatory Phenomena in Direct Current Glow Discharges

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Abstract
In glow discharges having a positive column with a constant emf and a series resistance, oscillations usually are observed in tube voltage, current, and light intensity. While current and voltage oscillations represent a modulation of only a few percent, the intensity decreases to zero between maxima in the positive column, but there is an appreciable steady component near the cathode. The intensity maxima move as positive striations toward the cathode, or as negative striations with a much higher speed toward the anode. Where positive and negative striations meet they stop for times up to 100 μsec.

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