Relation of gamma dose rate with the intensity of rain showers

Experimental and theoretical studies of the influence of the intensity, amount and duration of liquid atmospheric precipitation on the formation of $\gamma$-background in the surface layer of the atmosphere are presented. It was observed that precipitation causes an increase in the $\gamma$-radiation dose rate in the form of bursts. In this case, the total amount of precipitation in an event determines the magnitude of the burst of the dose rate, and the intensity of precipitation determines the rate of increase in the dose rate of $\gamma$-radiation. A mathematical model, which establishes a quantitative relationship between the dose rate of $\gamma$-radiation and the intensity (amount) of liquid atmospheric precipitation has been developed and verified ($R_2$ = 0.93).