Accomplishment and suggestion of ROK's nuclear material accountancy and control (NMAC) for nuclear security

Nuclear material accountancy and control (NMAC) is not only an obligation under IAEA Safeguards, but also it is one of the important measures to national nuclear security regulation. The importance of NMAC to nuclear security has been emphasized by international organization like IAEA, GICNT and nuclear security summit. This paper describes background, features, and institutionalization of ROK's NMAC system. Also, introduce new type of NMAC inspection system that can help the nuclear security. And finally, it will suggest the consideration for more strengthening the NMAC for nuclear security regulation. NMAC and physical protection are complementary systems to deter and detect unauthorized removal of nuclear material that is concerned in nuclear security. Well controlled NMAC system should be able to detect unauthorized removal of nuclear material. So the facility operators should additionally consider the NMAC activities as one of the protective layers. Also, the national NMAC regulation have strengthened for assuring the substantial quality and systematical function in nuclear security