FIELD: spectral analysis. SUBSTANCE: invention is related to pulse laser employed for quantitative spectral analysis of halogen-carrying non-metal or partially metal substances and coupled to filming fixture, spectrometer and CCD camera. Intensity of light emitted by at least one disc- shaped section of plasma expanding cone is memorized, summed and evaluated. Gradients of temperature and density are preferably found. EFFECT: improved method of recording of spectral analytical signal. 23 cl, 3 dwg
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