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A Schlieren System for Time and Space Resolved Photography of Self-Luminous Electrical Discharges

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A schlieren apparatus capable of recording index of refraction gradients in self-luminous discharges such as arcs, sparks, and inductively coupled plasmas is described. Resolution of better than 50 μm is obtained over a clear, bright, uniform field. The geometric design of the system cancels coma, and small off-axis angles are used to keep astigmatism low.

Keywords: Instrumentation, emission spectroscopy; Schlieren system; Spark, ac; Time-resolved spectroscopy

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706 2: Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706; on leave from Department of Chemistry, University of New Mexico, Albuquerque, NM 87131

Publication date: March 1, 1980

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