Hundreds of fusion scientists and engineers in each participating country took part in a detailed assessment of the then present status of the tokamak confinement concept vis-a-vis the requirements of an EPR, identified the required R&D by early 1980, and produced a conceptual design by mid-1981.
每个参与国的数百名聚变科学家和工程师参加了关于EPR要求的托卡马克约束概念的当前状况的详细评估，并在1980年初确定了所需的研发，并在1981年的年中制定了概念设计。