Search

Your search keyword '"JOSEPH C. ROARK"' showing total 1 results
Start Over Author "JOSEPH C. ROARK" Journal chemical physics letters
1 results on '"JOSEPH C. ROARK"'

1. Quantitative Absorption spectra via photoacoustic phase angle spectroscopy (ΦAS)

Author

James S. Hutchison, Joseph C. Roark, and Richard A. Palmer

Subjects
Photoacoustic effect, Absorption spectroscopy, Chemistry, Physics::Medical Physics, Phase angle, Phase (waves), Analytical chemistry, General Physics and Astronomy, Physical and Theoretical Chemistry, Molar absorptivity, Thermal diffusivity, Spectroscopy, Signal
Abstract

By measuring the phase angle of the photoacoustic signal it is possible to calculate the quantitative absorption spectrum of a condensed phase sample, if in addition only the sample thermal diffusivity is known. The technique also extends the upper limit of absorptivity which may be usefully studied photoacoustically by a factor of 10.

Published
1978

Catalog

Books, media, physical & digital resources
See catalog results