Time and space resolved analysis of N2 (C3Pu) vibrational distributions in pulsed positive corona discharge

Time and space-resolved emission spectroscopy was applied to study the N2(C3Pu ®B3Pg) and NO(A2S+®X2Pr) emission induced by pulsed positive primary streamers in coaxial geometry generated in high purity nitrogen. To the best of our knowledge, first complete vibrational distributions of the N2(C3Pu) electronic state were obtained under pulsed positive streamer discharge conditions in high-pressure nitrogen. On the basis of kinetic modeling we have obtained quenching rate constants for v=1-4 vibrational levels of N2(C3Pu) state by N2 : k Q (v=1) = (2.9 ±0.4)x10-11 cm3s-1, kQ (v=2) = (4.3 ±0.6)x10-11 cm3s-1, k Q (v=3) = (4.8 ±0.8)x10-11 cm3s-1, k Q (v=4) = (4.9 ±0.9)x10-11 cm3s-1.