Abstract

Optoelectrical characteristics of a pulsed-periodic discharge in xenon are investigated experimentally under conditions such that the product of the electrode gap length and the gas pressure is in the range of 4–20 Torr cm. High conversion efficiency of the energy deposited into vacuum UV radiation in a discharge sustained by 0.1-gms voltage pulses at a repetition rate of 1–10 kHz is demonstrated. It is shown that this effect is related to the fast expansion of the negative glow occurring after each discharge ignition. The conditions are determined under which the discharge is not accompanied by the heating and sputtering of the cathode.

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