期刊
NUCLEAR FUSION
卷 62, 期 3, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1741-4326/ac49aa
关键词
fusion pilot plant; steady-state tokamak; core-edge integration; high-temperature superconductors; liquid metals
资金
- U.S. Department of Energy (DOE) [DE-AC02-09CH11466]
- DOE Laboratory Directed Research and Development program
Recent U.S. fusion development strategy reports recommend pursuing innovative science and technology to build a low-cost fusion pilot plant. Compact tokamaks are proposed to reduce the capital cost, but face integration challenges. To address these challenges, a dedicated high-power-density tokamak facility is proposed.
Recent U.S. fusion development strategy reports all recommend that the U.S. should pursue innovative science and technology to enable construction of a fusion pilot plant (FPP) that produces net electricity from fusion at low capital cost. Compact tokamaks have been proposed as a means of potentially reducing the capital cost of a FPP. However, compact steady-state tokamak FPPs face the challenge of integrating a high fraction of self-driven current with high core confinement, plasma pressure, and high divertor parallel heat flux. This integration is sufficiently challenging that a dedicated sustained-high-power-density (SHPD) tokamak facility is proposed by the U.S. community as the optimal way to close this integration gap. Performance projections for the steady-state tokamak FPP regime are presented and a preliminary SHPD device with substantial flexibility in lower aspect ratio (A = 2-2.5), shaping, and divertor configuration to narrow gaps to an FPP is described.
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