To ensure safe operation of nuclear power plants, it is necessary to replace the facilities and equipment inside the nuclear power plant regularly, and of course more replacements should be made at old nuclear power plants. Most of these replacement facilities and equipment are contaminated with radioactivity, so they can not be recycled or treated with general waste.
Especially for metallic waste, the amount of waste can not be reduced, which costs a lot to dispose of waste. Most of the metallic wastes generated in the secondary system are not radioactive or contaminated, but only the surface is contaminated, so it can be recycled by decontaminating the contaminated area. In order to recycle it, the radioactivity of the waste should be below the self-disposal standard, and radioactivity surveys of the entire waste are required to confirm it.
This system measures the radiation emitted from the waste, calculates the radioactivity of the radioactive material contained in the waste, and finds the location if the radioactive material exists.