Abstract
The starting voltage of self-maintaining discharge as a function of pressure, the so-called Paschen curve, was measured in various N2/CO mixture gases. Paschen curve received the influence by discharge in N2/CO mixture gas. Conditioning of the electrode surfaces by means of glow discharge was found to be effective to get rid of this variation of the curve. It was ascribed to the effect of the CO molecules adsorbed on the electrode surfaces. Thus, it is argued that the effect to discharge characteristics of the CO admixture in N2 gas is not limited only to the discharge characteristics as the quenching gas in the discharge space, but consideration of the effect of CO at the surfaces seems also to be important. Positive characteristics of Townsend discharge, which was mentioned previously by us, was observed also in this gas mixture.
