CONSIDERATIONS ON IAEA SAFEGUARDS APPLICATION TO BOTH OLRS AND LWRS

Safeguards application of the IAEA to commercial reactors, which are under IAEA safeguards in connection with IAEA document INFCIRC/153, should be given on the basis of universality. This paper is aiming at ascertaining the differences of the Agency safeguards application, in terms of integrity of containment, strictness of diversion path, and back-up measures, to both On-Load Reactors and Light Water Reactors in Korea. Considering various C/S equipment installed at Light Water Reactors and On-Load Reactors for the detection of diversion of nuclear material, stricter safeguards is being applied to On-Load Reactors compared with Light Water Reactors. The diversion scenario for On-Load Reactor was also made in a stricter manner rather than that of Light Water Reactor. Accordingly, IAEA safeguards criteria and procedures for On- Load Reactors and Light Water Reactors could be reviewed through both an elaborate review of safeguards applications and a relative risk analysis based on the diversion scenario.