Analyses of Emission Intensity Data for Shock-Heated N2, O2, NO, and Air.
Abstract
Existing shock-tube spectral emission data between 2400A and 6000A have been analyzed in conjunction with SACHA code calculations to distinguish between and extract valid radiative constants for the discrete molecular transitions and various radiative continua processes occurring in heated air. The results include: an array of absolute Einstein A(v',v')- values for the First Negative Bands of the singly charged nitrogen molecular ion obtained from spectral photometry; the collision cross section of 3.8 x 10(E - 14) square centimeters from line width arguments; failure to observe any continuum radiation attributable to either the bremmstrahlung process on the neutral nitrogen atom or the photodetachment process for the negatively charged nitrogen atom; an improved array of Franck-Condon factors for the Schumann-Runge bands of molecular oxygen based on the Rydberg-Klein-Rees potential energy function; and a discussion of the NO Beta and NO Gamma emission in high resolution spectral emission data for shock-heated air and NO between 6000 degrees K and 8000 degrees K. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1969
- Accession Number
- AD0865085
Entities
People
- D. E. Buttrey
- H. R. Mcchesney
Organizations
- Lockheed Martin Missiles and Space