FIELD: instrument manufacture.
SUBSTANCE: invention relates to optical instrumentation and pertains to a spectrograph intended for photographic recording of the sky glow spectrum. Spectrograph comprises a laser, an input collimator, a dispersing element, and an output recording camera. The laser is configured to illuminate the upper atmosphere, providing laser-induced fluorescence of the products formed during nuclear explosions. The focal plane of the recording camera is made in the form of an area sensor. The laser beam is oriented in the recording direction.
EFFECT: possibility of taking measurements at twilight and after dark, expanding the temporal possibilities of detecting products formed during nuclear explosions.
1 cl, 2 dwg
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