Transient and Continuous Glow Discharges in He, H₂ and N₂ at Sub-Atmospheric Pressure

Abstract

Durations of transient glow discharge after static and overvoltage breakdowns have been investigated in helium, nitrogen and hydrogen at sub-atmospheric pressure. The result shows that the glow duration is much larger in helium than that in other used gases. The duration of transient glow after static breakdown is rather shorter than that after overvaltage breakdown. Furthermore a continuous glow discharge with a large crosssection was produced in a high frequency range of 25 kHz-100 kHz at sub-atmospheric and atmospheric pressures. The length of transient glow duration is correlative with the ease of production and stability of the continuous glow discharge.