Laser-induced fluorescence in high pressure solid propellant flames

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.26.003496· OSTI ID:6037928

Edwards, T; Weaver, D P; Campbell, D H

The application of laser-induced fluorescence (LIF) to the study of high pressure solid propellant flames is described. The distribution of the OH and CN radicals was determined in several solid propellant flames at pressures up to 3.5 MPa. The greatest difficulty in these measurements was the separation of the desired LIF signals from the large scattering at the laser wavelength from the very optically thick propellant flames. Raman experiments using 308-nm excitation were also attempted in the propellant flames but were unsuccessful due to LIF interferences from OH and NH.

• Research Organization: U.S. Air Force Astronautics Laboratory, AFAL/DYCR, Edwards Air Force Base, California 09523-5000
• OSTI ID: 6037928
• Journal Information: Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 26:17; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL REACTIONS
COMBUSTION
CYANIDES
DIAGNOSTIC TECHNIQUES
EMISSION SPECTROSCOPY
FLAMES
FLUORESCENCE SPECTROSCOPY
HYDROXYL RADICALS
LASER SPECTROSCOPY
METHYLENE RADICALS
OXIDATION
RADICALS
RAMAN SPECTROSCOPY
SPECTROSCOPY
THERMOCHEMICAL PROCESSES