Експрес-метод для визначення потужності еквівалентної дози на радіаційно-забруднених територіях хвостосховищ

Operation of radiation-hazardous facilities, such as tailings facilities of the former uranium production of the Prydniprovsky Chemical Plant (PСP, Ukraine), with buildings, structures, observation points, communications, technological equipment, etc. located on their territory, is impossible without a system of physical protection and radiation monitoring. Operation of such facilities in peacetime allows for fairly rapid data collection in the operating mode at the radiation-hazardous facility itself using the method of walking gamma imaging on the perimeter of the tailings storage facility. In conditions of martial law and under certain restrictive circumstances, it is not possible to go directly to the industrial site and conduct full-scale measurements. For this, express methods of mathematical forecasting can be used. Based on the conducted research, the dynamics of observations is calculated, and the predictive model allows determining the regulated radiation parameters (RRP), one of which is the equivalent dose rate, without using radiation control devices with specialists who will conduct measurements. For ten years, the actual values of radiation doses to personnel at the tailings storage facilities of the former uranium production of the PCP were determined. The article presents the developed universal mathematical model for determining the equivalent dose rate of gamma radiation for personnel conducting one-time measurements at a radiation-hazardous facility. The developed mathematical model for measuring the equivalent dose rate values is used for 2D modeling in places where dusty particles with radionuclides settled from the leeward side in the summer in places where the tailings mirror surface decreases. This makes it possible to predict the further radiation situation that will occur in the coming years and improve the system for calculating the total effective dose to a person.