Accession Number:

AD0656779

Title:

A STUDY OF LINE SHAPE FOR CO INFRARED EMISSION LINES.

Descriptive Note:

Final rept. 1 Jan 64-31 Mar 67,

Corporate Author:

CATHOLIC UNIV OF AMERICA WASHINGTON D C DEPT OF PHYSICS

Personal Author(s):

• Benedict,William S.
• Dowling,James A.
• Quinn,Jarus W.
• Silverman,Shirleigh

Report Date:

1967-06-30

Pagination or Media Count:

135.0

Abstract:

The shape of several vibration-rotation lines of CO emitted by a C2H2-O2 flame was investigated. An equivalent width measurement was made using an absorption cell of room temperature CO as an analyzer. Analysis of the data showed that line shapes could be fitted to a Voigt function with shape parameters between 1.0 and 1.5. A computer program was formulated to calculate integrated emissivities with a Voigt function line shape. The collision widths of the flame lines, as determined by the shape parameters, are in essential agreement with earlier room temperature measurements. The extrapolation of the widths measured at room temperature to high temperature was shown to be reliable within the accuracy of this experiment. Author

Descriptors:

• (*COMBUSTION PRODUCTS
• *INFRARED SPECTROSCOPY)
• (*CARBON MONOXIDE
• INFRARED SPECTRA)
• FLAMES
• ALKYNES
• OXYGEN
• EMISSIVITY
• LINE SPECTRA
• RESOLUTION
• SPECIAL FUNCTIONS(MATHEMATICAL)
• BAND SPECTRA
• INSTRUMENTATION

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy
• Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE