THE MICROWAVE DETECTION OF $HO_{2}$
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Date
1975
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Publisher
Ohio State University
Abstract
Using a Zeeman-modulated cavity spectrometer with a 30 see time constant and a phase locked klystron, we have observed in the products of a discharge-flow system the components of three zero field lines at $65 072 \pm 3.5$ MHz, $65 080.5 \pm 2$ MHz, and $65 097.5 \pm 3.5$ MHz. The Q of the Fabry-Perot cavity is about 10 000, and the magnetic field is swept from 0 to 30 Gauss. Chemical tests indicate that these lines are due to $HO_{2}$, and these frequencies are consistent with the prediction of Hougen $et al,^{1}$ for the $N = 1 \rightarrow 0$ transition. Tentatively these are identified as pertaining to the $(N = 1, J = 1/2) \rightarrow (N = 0, J = 1/2)$ transition as split by the hydrogen hyperfine interaction. The change in frequency of the Zeeman components with magnetic field is approximately consistent with the g$_{J}$ values for this transition. However, because of strong interaction between the proton and electron spins, J may not be a good quantum number. A search for other transitions is in progress.
Description
$^{1}$ J. T. Hougen, H. E. Radford, K, M. Evenson, and Carleton J. Howard, J. Mol. Spectrosc. (in publication).""
Author Institution: National Bureau of Standards; NOAA
Author Institution: National Bureau of Standards; NOAA