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Absolute intensity and polarization of rotational Raman scattering from N2, O2, and CO2An experimental examination of the absolute intensity, polarization, and relative line intensities of rotational Raman scattering (RRS) from N2, O2, and CO2 is reported. The absolute scattering intensity for N2 is characterized by its differential cross section for backscattering of incident light at 647.1 nm, which is calculated from basic measured values. The ratio of the corresponding cross section for O2 to that for N2 is 2.50 plus or minus 5 percent. The intensity recent for N2, O2, and CO2 are shown to compare favorably to values calculated from recent measurements of the depolarization of Rayleigh scattering plus RRS. Measured depolarizations of various RRS lines agree to within a few percent with the theoretical value of 3/4. Detailed error analyses are presented for intensity and depolarization measurements. Finally, extensive RRS spectra at nominal gas temperatures of 23 C, 75 C, and 125 C are presented and shown to compare favorably to theoretical predictions.
Document ID
19730009019
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Penney, C. M.
(General Electric Co. Schenectady, NY, United States)
St.peters, R. L.
(General Electric Co. Schenectady, NY, United States)
Lapp, M.
(General Electric Co. Schenectady, NY, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1973
Subject Category
Physics, Atomic, Molecular, And Nuclear
Report/Patent Number
NASA-CR-121091
SRD-72-163
Report Number: NASA-CR-121091
Report Number: SRD-72-163
Accession Number
73N17746
Funding Number(s)
CONTRACT_GRANT: NAS3-15825
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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