A Portable Radiometric System, Its Basic Elements, and Applications

The main elements of a developed portable radiometric system (PRS) and options for its application are discussed. When developing the PRS detector modules, silicon photomultipliers were used that made it possible to considerably reduce the size of these modules. Devices and systems of this kind find application in solving various problems of medical radionuclide diagnostics that require an increased field of view, an extended research time range, and mobility. The main goal of this work was to find the optimal configuration of PRS elements to ensure its minimum size and, at the same time, the maximum radiation detection efficiency, taking into account the features of the objects under study and the kinetics of the processes occurring in them. An algorithm for selecting the minimum amount of activity of a radioactive preparation required for each study is additionally considered.