Yamamoto corona discharge is a process

According to Chang, Lawless and Yamamoto corona discharge is a process, which is characterized by the flow of current from an electrode at a high potential into a gas at a low potential 3[4]. When current flows from an electrode in a fluid, it ionizes the particles of the fluid in its path to form plasma around the electrode. The result is a corona discharge, which occurs in different forms depending on the geometrical configuration of the electrode and the polarity of the field being investigated (asymmetric electrode pair) [Chang, Lawless and Yamamoto 3[5]). The following elements define the sequential process through which a corona discharge occurs. They include asymmetric electrode configuration, high voltage current for creating free electric charges, space charges, which allow an avalanche of electrons to build up, new charge carriers for the photons in the avalanche outside the free space area, and a new avalanche effect around the cathode [Chang, Lawless and Yamamoto 3[10].