HIGH-TEMPERATURE SPECTRA OF THE PURE ROTATIONAL BAND OF H2O.
Abstract
The short wavelength wing of the pure rotation emission spectrum of water vapor has been measured at temperatures between 550 and 2200K and at a nearly constant optical depth of .00024 g/sq cm. Apparent line positions and relative intensities agree with those determined from previous work. An approximate calculation of the local mean spectral absorption coefficient has been performed. This calculation is the weighted mean value of results obtained using energy levels of the prolate spheroidal top and of the 'most asymmetric' top. A comparison of the results of the calculation (applying the statistical band model using parameters obtained in vibration-rotation bands) with the experimental data indicates that the calculation is acceptable for the long wavelength contribution to the total emissivity of hot water vapor. An estimate of the integrated band intensity has been obtained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1964
- Accession Number
- AD0610362
Entities
People
- C. B. Ludwig
- C. C. Ferriso
- F. P. Boynton
- W. Malkmus
Organizations
- General Dynamics