Author/Authors :
Derzy، نويسنده , , Igor and Lozovsky، نويسنده , , Vladimir A and Cheskis، نويسنده , , Sergey، نويسنده ,
Abstract :
Cavity ring-down spectroscopy (CRDS) was used to measure absolute concentration profiles of the CH radical in low-pressure methane/air flames. The Q1(4) rotational line of the C2Σ+←X2Π band at 315 nm was used for concentration measurements. Very high sensitivity (2×1010 cm−3) is demonstrated. The measured profiles are in good agreement with that calculated using the GRI-Mech mechanism.
