High-performance superconductors for Fusion Nuclear Science Facility

Journal Article · Wed Nov 09 00:00:00 EST 2016 · IEEE Transactions on Applied Superconductivity

DOI:https://doi.org/10.1109/tasc.2016.2627010· OSTI ID:1340113

Zhai, Yuhu  ^[1]; Kessel, Chuck ^[1]; Barth, Christian  ^[2]; Senatore, Carmine ^[2]

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1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
2. Univ. of Geneva, Geneva (Switzerland)

High-performance superconducting magnets play an important role in the design of the next step large-scale, high-field fusion reactors such as the fusion nuclear science facility (FNSF) and the spherical tokamak (ST) pilot plant beyond ITER. Here, Princeton Plasma Physics Laboratory is currently leading the design studies of the FNSF and the ST pilot plant study. ITER, which is under construction in the south of France, utilizes the state-of-the-art low temperature superconducting magnet technology based on the cable-in-conduit conductor design, where over a thousand multifilament Nb₃Sn superconducting strands are twisted together to form a high-current-carrying cable inserted into a steel jacket for coil windings. We present design options of the high-performance superconductors in the winding pack for the FNSF toroidal field magnet system based on the toroidal field radial build from the system code. For the low temperature superconductor options, the advanced J_cNb₃Sn RRP strands (J_c > 1000 A/mm² at 16 T, 4 K) from Oxford Superconducting Technology are under consideration. For the high-temperature superconductor options, the rectangular-shaped high-current HTS cable made of stacked YBCO tapes will be considered to validate feasibility of TF coil winding pack design for the ST-FNSF magnets.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• Contributing Organization: Univ Geneva, Dept Condensed Matter Phys, CH-1205 Geneva, Switzerland
• Grant/Contract Number: AC02-09CH11466
• OSTI ID: 1340113
• Report Number(s): 5295; TRN: US1701274
• Journal Information: IEEE Transactions on Applied Superconductivity, Vol. 27, Issue 4; ISSN 1051-8223
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
material radiation limits
next-step fusion reactors
superconducting fusion magnet design
cable-in-conduit conductors