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Design of nuclear radiation detector for stack exhaust of plasma melting system

The Plasma melting technology can reduce the low and medium level radioactive waste to a minimum. The emission of high-temperature radioactive aerosol generated in the process of treatment needs to be monitored. After treatment with a high efficiency filter and meeting national standards for gaseous effluents, it will be allowed to be discharged into the atmosphere. In order to achieve stable and reliable radiation monitoring, through the research on the radionuclide analysis of stack exhaust and the design of detector selection, the combined design of plastic scintillator & NaI scintillator is adopted. At the same time, the real-time and reliable monitoring of radioactive aerosols in stack gases under high temperature environment is also solved.