Absolute Density of the CN(X2Σ+), v=0 Level Produced by the Dissociative Excitation Reaction of BrCN with the Microwave Discharge Flow of Ar

Abstract

The 4–0 band of the A2Πi–X2Σ+ transition of the CN radical produced by the dissociative excitation reaction of BrCN with the microwave discharge flow of Ar was observed by laser induced fluorescence (LIF) spectroscopy. The absolute number density of the CN(X2Σ+), v=0 level was evaluated to be 5.8(3)×1013 m-3 by an analysis based on a spectral simulation and on a calibration against Rayleigh scattering by Ar atoms.