Optimization of Nb{sub 3}Sn cable-in-conduit superconductor for application to pulsed tokamak coils

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.305659· OSTI ID:33454

Mitchell, N ^[1]

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1. Max-Planck-Inst. fuer Plasmaphysik, Garching (Germany). NET Team

Cable-in-conduit conductors in pulsed tokamak applications have design requirements imposed by the tokamak operation: typically an operating temperature dependent on the AC losses and pulse time, the field by the tokamak performance and a quench discharge time by the coil voltage limits. The void fraction of helium in the cable is determined by mechanical and thermal stability considerations. It is then possible to maximize the cable space current density for a given temperature margin and strand properties, using the procedure in the companion paper ``Parametric Study of Cost Functions in Cable-in-Conduit-Conductors``. Nb{sub 3}Sn strands can typically offer high Jc, high loss or low loss, low Jc. The sensitivity of the cable design to the choice of strand is discussed with reference to the quantity of strand and the achievable current density.

• OSTI ID: 33454
• Report Number(s): CONF-930926--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CRITICAL CURRENT
DESIGN
ENERGY LOSSES
ITER TOKAMAK
NIOBIUM BASE ALLOYS
QUENCHING
SUPERCONDUCTING CABLES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING WIRES
TIN ALLOYS