Emission spectrum of the ν3 band of SF6 at 1780 °K

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Abstract
The author measured the emission spectrum of the ν3 band of SF6 at 1780 °K in a shock tube. At this high temperature, the emission peaks at a frequency of 907 cm−1 (11.02 μ); at room temperature, the band has a peak intensity at 948 cm−1. Lyman and Nowak observed similar but proportionately smaller shifts of the spectral maximum to lower frequencies at temperatures between 400 and 800 °K. A knowledge of the high-temperature spectral distribution of the ν3 band is important for the design and interpretation of isotope separation experiments in which SF6 is dissociated by selective multiphoton absorption of CO2 laser photons.