METHOD OF MEASURING CONCENTRATION OF 137Cs IN AQUEOUS MEDIUM

摘要

FIELD: measurement technology.;SUBSTANCE: invention relates to a method of measuring concentration of ¹³⁷Cs in an aqueous medium and is intended for monitoring radioactive contamination of water bodies. In disclosed method, content of ¹³⁷Cs is determined by direct beta-radiometry after its concentration on disc mini adsorbers using mass of sorbent which is 100 times less than for gamma-spectrometric measurement of content of ¹³⁷Cs.;EFFECT: increasing efficiency of detecting said radionuclide by 10÷50 times in comparison with gamma-spectrometric method and reducing volume of treated water from 1,000 to 50 litres or less.;1 cl, 2 dwg