Experimental Investigation of Deactivation of N₂ (A³∑_u⁺) by NO by Measurement of Temporal Ionization Growth in N₂ and N₂⁺NO

Abstract

Concave formation on the current profile on the plane electrode in negative corona was reported. The authors tried to clarify the condition of concave formation. From the results, it is assumed that N₂ (A³ ∑_u⁺) molecules act an important role. To confirm this speculation, experiments in uniform ticld at low pressure were carried out. The results show many similarities on variation of current with time and/or with NO concentration between different experimental conditions, one is corona in atmospheric pressure and the other is non-selfsustaining discharge under uniform field in low pressure. Thus, accumulation and quenching processes of N₂ (A³ ∑_u⁺) molccules is proposed to cxplain the phenomena on current profile.