dc.creator Montan, D. N. en_US dc.creator Decius, J. C. en_US dc.date.accessioned 2006-06-15T12:56:45Z dc.date.available 2006-06-15T12:56:45Z dc.date.issued 1959 en_US dc.identifier 1959-M-9 en_US dc.identifier.uri http://hdl.handle.net/1811/7897 dc.description $^{*}$This research wan supported by the Office of Naval Research. en_US dc.description Author Institution: Department of Chemistry, Oregon Slate College en_US dc.description.abstract Attempts to employ a spectrophone cell to measure vibrational life times through a study of small phase shifts raise the question of whether any processes other than the finite transition time from excited vibrational states to the ground state contribute to the observed phase shift. A fairly detailed theory of the transformation of radiant to acoustic energy has been developed and some aspects subjected, to experimental test. In the present work, we have demonstrated with a aeries of $N_{2}O$ and argon mixtures that the total signal in a vibrational band is proportional to the first power of the total pressure times the square root of the mole fraction of the absorbing gas over a fairly broad range. This result corresponds to the so-called """"square root"""" region of effective line widths known in ordinary absorption spectroscopy. It enables one to place upper limits upon extraneous phase shifts in the life time experiment and suggests alternative possibilities for indirect measurement of integrated band intensities and or individual line breadths. en_US dc.format.extent 108759 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title RESPONSE OF A SPECTROPHONE CELL AT VARIOUS GAS COMPOSITIONS AND $PRESSURES^{*}$ en_US dc.type article en_US
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