| Abstract: | It is strongly demanded to control reactivity for safety and steady operation of nuclear reactor. Fissile enrichment should be, therefore, accurately managed in order to carry out it. A concept of physical accounting method for adjusting fissile enrichment is very useful to manage plutonium content and to control reactivity of nuclear reactor where plutonium is used as main fissile material. The basis of the concept is shown in this paper together with the result of the application to typical prototype fast breeder reactor (FBR). The rationality for adopting the method is also quantitatively shown in this paper. |
