Investigations in the vacuum ultraviolet using a grazing incidence spectrograph.
Kaufman, Larry Edward
Kelly, Raymond F.
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A grazing incidence vacuum spectrograph has been used for studies on high temperature plasmas and to investigate the Tungsten spectra produced by a vacuum spark source. The spectrograph uses a concave grating which has a 1-meter radius of curvature and 6DD grooves per mm. Incident light strikes the grating at an angle of 8.15 , and the diffracted light is collected on a film strip (15-inches long, 35 mm SDR film) which is held along the Rowland circle. Design and details of construction of the spectrograph and the vacuum spark source are presented. A total of kl new Tungsten lines were identified from the vacuum spark source using Aluminum and Tungsten electrodes.
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