Loss Processes of N₂ (A³Σu ⁺) by Harmful Gases

Loss processes of metastable nitrogen molecules A 3 Σ u + in a Townsend discharge have been investigated in N 2 /NO, N 2 /CCl 2 F 2 and N 2 /CH 2 FCF 3 mixtures. The collisional quenching rate coefficients of N 2 (A 3 Σ u + ) by NO, CCl 2 F 2 and CH 2 FCF 3 are determined using a new theory which takes the reflection at the boundary into account in solving the diffusion equation. The collisional quenching rate coefficients of N 2 (A 3 Σ u + ) by NO, CCl 2 F 2 and CH 2 FCF 3 are 4.75×10 -11 , 8.32×10 -13 and 2.96×10 -15 cm 3 s -1 , respectively.