AbstractThe time has come for fusion experimental reactor programmes (ITER/FER) to enter the engineering design phase, where the large scale models which are capable of extrapolation to the construction of reactors will be developed as the core of the main activities. A brief review of the present status of the required R&D for experimental reactors, and the technological realization perspectives, are described.
核融合実験炉計画（ITER/FER）が工学設計段階に入る時が来ており、そこでは炉の建設への外挿が可能な大型モデルの開発が主要活動の中核となる。実験炉に必要な研究開発の現状と、技術的実現の見通しについて概説する。