Development of prototype nuclear forensics library for nuclear materials and radioisotopes in Japan Atomic Energy Agency

In this paper, the development of prototype NFL for nuclear materials and radioisotopes will be presented. An NFL plays an important role to compare the seized materials with the characteristics of known materials to provide information about a material's origin and history. Recently, the development of nuclear forensics library has been carried out in some countries and the concept of national NFL to collect all target material in the country is the most popular in current international society. The prototype NFL in JAEA also follows this concept. The design of database in an NFL depends strongly on the scale of nuclear fuel cycle in one country, which refers to the amount and variety of the materials available. The database and its structure of the prototype library were studied and designed based on data of target materials possessed in JAEA. This is because the target materials and fuel cycle facilities in JAEA can cover almost all stages of nuclear fuel cycle. The prototype library developed in JAEA and its experiences could contribute to future national library in our country and also for other countries which intends to develop NFLs as a model of NFL development.