In order to permanently dispose of radioactive waste or dispose of it itself, the nuclear stock inventory evaluation in the waste should be preceded. Soil and concrete wastes that occur when nuclear power plants are dismantled are massive, and most of the radiation concentrations appear from deregulation level to low level. To determine whether to deregulation of these wastes, a technology to measure the radioactivity level at the lowest level is required when analyzing the radioactivity concentration.
Conventional measurement methods are a pollution monitoring device using a detector with a large size, and a detector with a high detection efficiency, and a nuclear stock inventory measuring device using a detector with a low detection efficiency and a difficult large size.
This product can simultaneously implement pollution monitoring and nuclear stock evaluation of waste generated in large amounts by complementing defects of each detector using NaI(Tl) and PVT detector at the same time.