Abstract
The objective of the demonstration power plant is to demonstrate the major features of a larger commercial fusion power plant. Design studies were carried out to identify and evaluate technological problems and examine alternatives for an initial conceptual design of a noncircular tokamak demonstration power reactor. It was shown that a demonstration power plant can exhibit high net efficiency, a tritium breeding ratio greater than or equal to 1 and can provide the basis for technological and economic scaling to commercial plants. The emphasis of the study was to examine areas unique to noncircular tokamaks. This paper discusses the important systems and technological tradeoffs made to arrive at a consistent, feasible reactor design. Included is a discussion of commercial plant requirements, the low-exposure maintenance concept, the tritium handling system, the flowing plasma boundary impurity control, the field-shaping coil design, and the blanket and shield designs.
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