FIELD: nuclear power engineering; removing radioactive pollutants from surfaces of pieces of equipment or parts by means of circulating solutions.
SUBSTANCE: proposed process for controlling cyclic decontamination involving saturation of decontaminating solution with radionuclides includes chemical treatment of surface pollutants with decontaminating solution, checkup of solution saturation with radionuclides, termination of chemical treatment as soon as saturation of decontaminating solution with radionuclides is brought to limiting value, and removal of saturated decontaminating solution. Ionizing radiation dose rate is remotely measured by means of gamma transducers installed at reference points and chemical treatment is ceased as soon as inequality conditions are satisfied.
EFFECT: enhanced reliability of process due to optimal evaluation of chemical treatment time; enhanced efficiency and quality of decontamination due to reduced secondary sorption of radionuclides.
3 cl, 18 dwg
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