Area monitoring systems within the plant

Area monitoring includes the measurement of radiation dose rates and amounts of airborne radioactive material. 

In LWRs, external radiation monitoring systems should be installed in  

In other types of reactor, similar provisions should be made at the corresponding locations. 

Permanently installed monitors for detecting radioactive contamination in air should be provided at selected locations in a nuclear power plant. The activity concentration in air should be determined, at least for those accessible rooms of the controlled area where airborne radioactive substances may be present in amounts that could influence the radiation doses to workers. In LWRs, monitors should also be located at the ventilation ducts for exhaust air from the following areas  

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