The Way to the commercial reactors

Matsuda, Shinzaburo

This is the review of past fusion R&D project of Japan, and summarized necessary research and development at each stage of the experimental reactor, the DEMO reactor and the commercial reactor based on the fusion program of other countries. This review is described in particular a specific plan of ITER and broader approach in relation with the R&D process toward the DEMO reactor and the role of the DEMO reactor. The background and the vision of a step-by-step R&D of other countries are also described.