Accurate calculations of the transfer of radiation in the 15-micron band of carbon dioxide require a knowledge of the real structure of the bank as well as the replacement of the usual relaxation equation by the system of gas-kinetic equations. The probabilities of nonelastic collisions, taking into account Fermi resonance, are computed. The vibrational relaxation time of carbon dioxide in dry air at 200 deg K and 1 atm pressure is expected to fall within the interval 2 to 20 x 0.0000001 sec. The contribution of water vapor to the relaxation time of carbon dioxide is discussed. (See also P-3595, P-3596.) 23 pp. Bibliog.
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