Citation
Rj. Balla et Rj. Exton, Thermometry in air by optically exciting the I-2 Cordes bands, MEAS SCI T, 11(9), 2000, pp. 1319-1327
Citations number
33
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
MEASUREMENT SCIENCE & TECHNOLOGY
ISSN journal
09570233
→ ACNP
Volume
11
Issue
9
Year of publication
2000
Pages
1319 - 1327
Database
ISI
SICI code
0957-0233(200009)11:9<1319:TIABOE>2.0.ZU;2-H
Abstract
An optical method is described to perform instantaneous thermometry along a
line in low-density air seeded with it. Laser-induced fluorescence is gene
rated by exciting the I-2 Cordes bands (D (1)Sigma(u)(+) <--X (1)Sigma(g)()) with a tunable ArF excimer laser near 193 nm. Temperatures from 295 to 6
48 K are measured by fitting the I-2 emission spectrum from 188 to 195 nm t
o a vibrational Boltzmann distribution. Uncertainties for average measureme
nts are typically +/-5% (+/-1 sigma).