Nuclear-physical methods of monitoring sealed radionuclide sources based on highly active radionuclide [sup.60]Co

Two basic methods for measuring exposure dose capacity (EDC) and of determining the activity of gammaradiation sources based on the radionuclide [sup.60]Co are considered, namely, direct measurements and relative measurements (the comparator method), and also a system for transferring the dimensions of the units of EDC and its equivalent activity from measuring instruments of the 1st category to commercial sources of the 3rd category.