Investigations in the vacuum ultraviolet of a steady state nitrogen plasma
Beam, James Carlin
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In preparation for studies of shock waves in a collisionless plasma, a grazing incidence vacuum spectrograph has been used to study the vacuum ultraviolet spectra of a nitrogen plasma. The spectra are formed by a concave grating with a 1-meter radius of curvature and recorded on Kodak SWR (Shortwave-Radiation) Film. Analysis of the spectra was by comparison with helium and argon spectra, with intensity information from densitometric measurement using a Leeds and Northrup recording densitometer. Relative intensity determination provides an electron temperature evaluation technique.
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