Measurement of infinite multiplication factor by using central cell reactivity worth on FCA XIV-1 core simulating High Conversion Light Water Reactor

A series of reactor physics experiments simulating High Conversion Light Water Reactor (HCLWR) has been carried out at Fast Critical Assembly (FCA) in Japan Atomic Energy Research Institute. 'Cell Reactivity Worth Method' which obtains infinite multiplication factor (K∞) of core cell with use of the central cell reactivity worth was applied for measurement of K∞ on FCA XIV-1 core which is the first core in the series of experiments. Comparison between the K∞ value by Cell Reactivity Worth Method and the K∞ value by conventional Buckling Method was made. As a result of comparison, K∞ values by these two independent experimental methods agreed well within experimental error. (author)