Development of a Complete System Determining Route Inspection Efforts and Timing for Fabrication Plants

At the Fourteenth Annual Meeting of the INMM we presented a paper "An approach to determining a system of routine inspection, efforts and timing for fabrication plants" developed in 1971. This System consisting mainly of the analysis of time-series data of MUF originating in each fuel fabrication facility was able to determine reasonable routine inspection efforts for each individual facility. But, as stated in the paragraph 81 of INFCIRC/153 (or The Agreement), actual routine inspection efforts should be determined taking, not only the analysis of MUF and so on, but also various other factors in fuel cycle into consideration. Therefore, in 1972 we evaluated those criteria listed in the said paragraph 81, that is, (a) the form of nuclear material (b) the effectiveness of the State's accounting and control system (c) characteristics of the State's nuclear fuel cycle (d) international interdependence (e) technical developments in the field of safeguards, in view of their influence on routine inspection efforts, and including the System developed in 1971 developed a complete System which can determine actual routine inspection efforts for any facility effectively. The outline of this complete System is shown below.