The Safeguards-By-Design (SBD) is recommended as an approach, in which the internationalsafeguards is fully integrated from the design stage of a nuclear facility. In this paper, safeguards approachfor the pyroprocessing facility in Republic of Korea (ROK) is introduced. The ROK has developed nuclearfuel cycle facilities such as the DUPIC Fuel Development Facility (DFDF), the Advanced spent fuelConditioning Process Facility (ACPF) and the PyRoprocessing Integrated inactive Demonstration facility(PRIDE), and safeguards systems have been developed with a facility design team since the pre-conceptualdesign stage of the facility. Neutron coincidence counters, which could be operative at hot cell, weredeveloped for the nuclear material accountancy of the facility. Since the safeguards approach and criteriafor the pyroprocessing facility has not been established by IAEA, the ROK has been involved in a MemberState Supporting Program (MSSP). A Reference Engineering-scale Pyroprocessing Facility (REPF)concept was established, and a safeguards system was developed for the REPF. The safeguards approachand safeguards technology for the pyroprocessing facility is being investigated through the internationalcollaboration.
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