Method of determining the activity of radioactive Pb-210 lead on filter inserts, in particular in gas filter-separator batteries and the arrangement of devices for determining the activity of radioactive Pb-210 lead on the inserts

摘要

The method of determining the radioactivity of lead Rb-210 on filtration deposits, in particular in gas filters batteries, is that the average concentration of radon Rn-222 in the gas flowing through the filter separator is measured using known measurement methods, as well as the flow of gas volume and average particulate content in the gas, while the lead Pb-210 activity in the dust collected on the filtration input is calculated on the basis of theoretical dependence on the results of measurements of the above parameters. Pb-210 on filter inserts,Particularly in filter separator batteries, it is characterised by having two measuring circuits: connected parallel to the gas pipeline (1) the solid fraction measurement circuit and also extracted from the gas pipeline (1) or from the solid fraction measurement circuit and having an air outlet, the radon concentration measurement circuit Rn-222.