TY - JOUR AB - Spatially resolved measurements of absolute oxygen atom concentrations in low-pressure H2/O2/Ar-, CH4/O2- and C2H2/O2 flames are performed by two-photon laser excited fluorescence. The measured signals are converted into O atom number densities using a calibration technique, based on the comparison of fluorescence signals in a flame with those in a discharge flow reactor. This procedure requires consideration of quenching processes; furthermore, the influence of photoionization and potential photodissociation of flame gases must be considered. The sensitivity of the derived concentrations to experimental parameters and atomic quantities is discussed. DA - 1989 DO - 10.1016/S0082-0784(89)80203-6 LA - eng IS - 1 M2 - 1887 PY - 1989 SN - 0082-0784 SP - 1887-1896 T2 - PROCEEDINGS OF THE COMBUSTION INSTITUTE TI - Discussion of two-photon laser-excited fluorescence as a method for quantitative detection of oxygen atoms in flames UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-17810149 Y2 - 2024-12-27T00:51:47 ER -