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High-Performance Superconductors for Fusion Nuclear Science Facility

Zhai, Yuhu
Kessel, Chuck
Published in IEEE Transactions on Applied Superconductivity. 2017, vol. 27, no. 4, p. 1-5
Abstract 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. 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 Jc Nb3Sn RRP strands (Jc > 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.
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Other version: http://ieeexplore.ieee.org/document/7740065/
Research group Groupe Senatore
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ZHAI, Yuhu et al. High-Performance Superconductors for Fusion Nuclear Science Facility. In: IEEE Transactions on Applied Superconductivity, 2017, vol. 27, n° 4, p. 1-5. https://archive-ouverte.unige.ch/unige:92826

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Deposited on : 2017-03-27

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