Surface-spark discharges compared with exploding wires/films as high temperature UV sources (original) (raw)

1983

Abstract

The electrically exploded 0.05 to 0.25 mm diameter metal wires and film thicknesses from 0.1 to 10 (SIGMA) m were studied for lengths from 3.0 to 100 cm. These exploded metal conductor initiated discharges proved to be sources for intense radiation in the near ultraviolet range, 200 to 300 nm, with brightness temperatures measured over 40,000 K. The impedance matching characteristics and scaling laws developed through these studies are presented and compared with more recent results on surface spark discharges. These latter discharges do not appear to be as nearly blackbody as the conductor initiated discharges, but through selected insulator surfaces, intense emission in the spectral range of interest can be obtained.

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