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Status of Development of Pyroprocessing Safeguards at KAERI
박세환,안성규,장홍래,한보영,김봉영,김동선,김호동,이채훈,오종명,서희,신희성,원병희,구정회,Park, Se-Hwan,Ahn, Seong-Kyu,Chang, Hong Lae,Han, Bo Young,Kim, Bong Young,Kim, Dongseon,Kim, Ho-Dong,Lee, Chaehun,Oh, Jong-Myeong,Seo, Hee,Shin, Hee Korean Radioactive Waste Society 2017 방사성폐기물학회지 Vol.15 No.3
The Korea Atomic Energy Research Institute (KAERI) has developed a safeguards technology for pyroprocessing based on the Safeguards-By-Design (SBD) concept. KAERI took part in a Member-State Support Program (MSSP) to establish a pyroprocessing safeguards approach. A Reference Engineering-scale Pyroprocessing Facility (REPF) concept was designed on which KAERI developed its safeguards system. Recently the REPF is being upgraded to the REPF+, a scaled-up facility. For assessment of the nuclear-material accountancy (NMA) system, KAERI has developed a simulation program named Pyroprocessing Material Flow and MUF Uncertainty Simulation (PYMUS). The PYMUS is currently being upgraded to include a Near-Real-Time Accountancy (NRTA) statistical analysis function. The Advanced Spent Fuel Conditioning Process Safeguards Neutron Counter (ASNC) has been updated as Non-Destructive Assay (NDA) equipment for input-material accountancy, and a Hybrid Induced-fission-based Pu-Accounting Instrument (HIPAI) has been developed for the NMA of uranium/transuranic (U/TRU) ingots. Currently, performance testing of Compton-suppressed Gamma-ray measurement, Laser-Induced Breakdown Spectroscopy (LIBS), and homogenization sampling are underway. These efforts will provide an essential basis for the realization of an advanced nuclear-fuel cycle in the ROK.