Back-Corona Discharge Phenomenon in the Nonthermal Plasma System

So far, there have been many types of nonthermal plasma systems (as plasma reactors) presented. The main problems in construction of the plasma reactors are relatively low discharge intensity and relatively high pressure drop between their inlets and outlets for proceeding gas. These drawbacks can be eliminated using back-corona discharge phenomenon in the discharge system. Back discharges could be successfully applied in the plasma reactors because of higher discharge (plasma) density and similar pressure drop in comparison to corona discharge systems. Images of plasma from corona discharge and back discharges for a point-to-plane electrode system in the air are presented.