Measurement of species concentrations in flames by laser-induced fluorescence: Progress report, January 1, 1986-December 31, 1987

Technical Report · Tue Mar 01 04:00:00 EST 1988

OSTI ID:5307589

Salmon, J T; Peterson, D L; Lytle, F E; Laurendeau, N M

This report describes work accomplished in the last two years on measurement of species concentrations in flames via laser-induced fluorescence. During this period, we have developed a new quenching-independent method for obtaining quantitative measurements of atomic hydrogen concentration. The technique, labeled photoionization controlled-loss spectroscopy (PICLS), employs two-photon absorption followed by photoionization of the excited-state atoms. A new monochromatic temperature probe has also been developed which makes use of the anomalous fluorescence of pyrene. In this case, a local vibrational temperature can be measured using a single laser beam by monitoring the fluorescence ratio from the first and second excited states of the pyrene molecule. 20 refs., 6 figs.

• Research Organization: Purdue Univ., Lafayette, IN (USA). Flame Diagnostics Lab.
• DOE Contract Number: FG02-85ER13395
• OSTI ID: 5307589
• Report Number(s): DOE/ER/13395-2; ON: DE88007096
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
AROMATICS
ATOMS
CHEMICAL ANALYSIS
CONDENSED AROMATICS
DOCUMENT TYPES
ELEMENTS
EMISSION SPECTROSCOPY
FLAMES
FLUORESCENCE SPECTROSCOPY
HYDROCARBONS
HYDROGEN
LASER SPECTROSCOPY
NONMETALS
ORGANIC COMPOUNDS
PROGRESS REPORT
PYRENE
RESEARCH PROGRAMS
SPECTROSCOPY