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Practical Determination of Flame Species Via Laser Saturation Fluorescence Spectroscopy
Volume 36, Number 2 (April 1982) Page 106-110
Ahn, B.T.; Bastiaans, G.J.; Albahadily, F.
The observation of molecular fluorescence caused by high-power pulsed laser excitation has been found to be an accurate technique for the determination of relative OH radical concentrations on a spatially resolved basis in a circular air-acetylene flame. It was found that the high power of radiational excitation used allowed fluorescence saturation to be approached. Theory then predicts fluorescence intensities to be independent of temperature and collisional quenching effects. However accurate estimates of relative concentrations can not be obtained unless corrections are made for incomplete saturation and postfilter effects. Procedures for conveniently applying such corrections are reported.