Absolute CH concentration in flames measured by cavity ring-down spectroscopy

Igor Derzy, Vladimir A. Lozovsky, Sergey Cheskis

Research output: Contribution to journalArticlepeer-review

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 C2+ ← 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.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalChemical Physics Letters
Volume306
Issue number5-6
DOIs
StatePublished - 18 Jun 1999

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