METHOD OF MONITORING BACKGROUND RADIATION LEVEL AROUND NUCLEAR POWER PLANT Russian patent published in 2017 - IPC G01T1/167 

FIELD: physics.

SUBSTANCE: invention relates to methods of monitoring radiation environment and can be used to monitor background radiation level around a nuclear power plant. The method comprises probing nuclear power plant territories comprising reference areas with known radiation level. Probing is carried out using space vehicles in an orbital eclipse period in the ultraviolet and near-infrared ranges. A synthesized matrix is formed from pixel by pixel ratios of the ultraviolet image to the infrared image. The function of the signal of the synthesized matrix is normalised in a standard scale of 0…255 quantisation levels. A program is used to select contours on the synthesized image. The area of the contours and fractal dimension of the image within the selected contours is calculated. The equivalent area of radiation contamination around the nuclear power plant is determined. The behaviour of change in the radiation background is evaluated.

EFFECT: invention increases accuracy and efficiency of monitoring.

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