https://www.selleckchem.com/pr....oducts/ly2584702.htm
In this Letter, the counterintuitive and largely unknown Raman activity of oxygen atoms is evaluated for its capacity to determine absolute densities in gases with significant O-density. The study involves $
m CO_2$ microwave plasma to generate a self-calibrating mixture and establish accurate cross sections for the $^3\!P_2\leftrightarrow ^3\!P_1$ and $^3\!P_2\leftrightarrow ^3\!P_0$ transitions. The approach requires conservation of stoichiometry, confirmed within experimental uncertainty by a 1D fluid model. The measurements yield
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