Anode diameter effect on ignition and burning of DC discharge

摘要

This paper studies how an anode diameter value affects ignition and CVC of the dc glow discharge. The decrease inudanode diameter is shown to cause a shift of breakdown curves to higher gas pressure and breakdown voltage values andudincreases the discharge extinction voltage. In the normal mode for moderate anodes the decrease in the dischargeudcurrent is accompanied with a considerable increase of the voltage across the electrodes. A bright anode glow is foundudto be present around the small anode in the total range of gas pressure under study.