The role of associative ionization reactions in the memory effect of atmospheric pressure Townsend discharges in N-2 with a small O-2 addition

摘要

In this work, we investigate the role played by associative ionization reactions in the memory effect of atmospheric pressure Townsend dielectric barrier discharges working in N-2 with a small addition of O-2. Systematic laser-induced fluorescence measurements are carried out in order to provide the absolute densities of N and O atoms and NO molecules for different oxygen concentrations. The use of these data in a dedicated model allows us, in particular, to estimate the rate of the reaction N(2P)+O(3P)-> NO++e