Abstract: Through the in-depth study of the control logic of access monitoring system in the radiation control area, the method of combining unified authorization of radiation workers and the authorization of the working sub-unit in nuclear power plants to clearly limit the radiation activities to the corresponding reactor units is explored. The focus is on the methods and applications of solving the radiation control division unit authorization. Experiments were made to systematize the monitoring of access to the radiation control areas.

Key words: Radiation control area, Authorization, Individual dose