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Rotational level-dependent collisional broadening and line shift of the A2Sigma(+)-X2Pi (1,0) band of OH in hydrogen-air combustion gasesMeasurements of the collisional broadening and line shift of the (1,0) band of the A2Sigma(+)-X2Pi system of OH are reported in atmospheric pressure hydrogen-air combustion gases. The measurements were made using a single-mode, narrow linewidth, frequency-doubled ring dye laser operating near 283 nm. The OH was generated in the combustion gases of a flat flame H2-air burner. Collisional broadening parameters for equilibrium mixtures of H2, O2, H2O, and N2 were obtained spanning a range of fuel/air equivalence ratios from 0.6 to 1.6 and temperatures from 1500 to 2050 K. Measurements were obtained spanning rotational quantum numbers from 4.5 to 16.5. The collision induced frequency shift was determined to be 0.1 that of the collisional broadening.
Document ID
Document Type
Reprint (Version printed in journal)
Kessler, W. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Allen, M. G.
(NASA Lewis Research Center Cleveland, OH, United States)
Davis, S. J.
(Physical Sciences, Inc. Andover, MA, United States)
Date Acquired
August 16, 2013
Publication Date
February 1, 1993
Publication Information
Publication: Journal of Quantitative Spectroscopy & Radiative Transfer
Volume: 49
Issue: 2
ISSN: 0022-4073
Subject Category
Atomic And Molecular Physics
Accession Number
Funding Number(s)
Distribution Limits

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