Abstract

Explosive light sources consisting of 20-g and 200-g explosive charges fired in containers filled with argon were observed by a grating spectrograph and a phototube radiometer. The infrared spectra showed a continuum with superimposed strong emission lines characteristic of argon. The visible and ultraviolet spectrum showed a continuum with the intensity increasing steadily from the visible into the ultraviolet. Radiometer measurements showed that the ratio of ultraviolet to visible radiation was that of a black-body at about 20,000°K.

© 1965 Optical Society of America

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