Comparison of tokamak DEMO reactor concepts between Japan and Europe and present status of the United States

Takase, Haruhiko

Tokamak DEMO reactor design concepts of Japan and Europe are presented and present status of reactor design activities in the United States is introduced in this paper. The design concept by Europe has a priority in the early realization of fusion energy while the development strategy by the United States has a priority in the economy. On the other hand, the design concept by Japan has an intermediate characteristic between both strategies.