Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
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Feasibility of HTS Magnet Option for Fusion Reactors
Nagato YANAGISatoshi ITOYoshiro TERAZAKIKyohei NATSUMEHitoshi TAMURAShinji HAMAGUCHIToshiyuki MITOHidetoshi HASHIZUMEJunji MORIKAWAYuichi OGAWAMasataka IWAKUMAAkio SAGARA
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2014 Volume 9 Pages 1405013

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Abstract

Conceptual design studies are being carried out on the application of high-temperature superconducting (HTS) conductors and coils to the magnet systems of fusion reactors. A 100-kA-class HTS conductor is required to be applied at high magnetic fields of > 12 T. A simple stack of YBCO tapes embedded in copper and stainless-steel jackets is found to be a practical approach to producing large-scale conductors that exhibit high cryogenic stability and mechanical rigidity. The feasibility of the segmented fabrication method for large complex HTS coils, such as the helical coils in the LHD-type helical fusion reactor FFHR-d1, is being investigated by developing mechanical bridge-type lap joint technology of HTS conductors.

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© 2014 by The Japan Society of Plasma Science and Nuclear Fusion Research
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