Abstract

The influence of the size of the cathode gap on the initiation of the hollow cathode effect in a glow discharge system with an extended rectangular hollow cathode is presented. It is established that the threshold current of the discharge transition to the mode with a hollow cathode is determined by the size of the cathode gap. With a decrease in the width of the gap, the threshold current increases disproportionately, with an increase in the longitudinal size of the gap, this current decreases sharply

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