Atmospheric Pressure Corona Discharge in the Needle-Plane Electrode System: Influence of Field Peaking on Electrophysical Parameters

In this article the initiation of a corona discharge from a negatively charged point with a small radius of curvature is investigated experimentally and as a result of modeling. Modeling showed that the periodicity of the discharge current in our model is observed only in the case of adding electron detachment reactions to the plasma-chemical scheme. The reason for the pulse-periodic mode of current flow is the presence of negative O2− ions. It was shown experimentally that the first streamers at a minimum voltage have a ball shape.