Abstract
Dissociation of nitrogen in dc glow plasmas in flowing-gas systems has been studied quantitatively in the pressure range 1–3 Torr, n e range 3–8 × 10 10 cm −3, and kT e range 2–3 eV. The extent of dissociation, which is of the order of 1% and varies with experimental conditions, has been for the first time expressed fully as a function of electron density and electron temperature. A simple collisional-radiative model predicts well the trends of dissociation as a function of plasma parameters, and predicts absolute values of per cent dissociation, in the worst case, within an order of magnitude.
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