Development of a compact 18-T MF-(NbTi) sub 3 Sn coil

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5690186

Nishi, M; Isono, T; Takahashi, Y; Ando, T; Tsuji, H ^[1]; Uchiyama, T; Aoki, N; Ichihara, M; Suzuki, E ^[2]

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1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)
2. Showa Electric Wire and Cable Co. Ltd., Kawasaki, Kanagawa (Japan)

This paper reports on the magnetic flux density of 18.4 T-4.2 K obtained by a 32-mm-bore superconducting coil wound with two grades of tube-processed multi-filamentary (NbTi){sub 3}Sn superconductors in the background field of 13.2 T. The average current density values of this coil were 70 A/mm{sup 2} in the 18.4 T region and 107 A/mm{sup 2} in the region less than 16.7 T. The energy stored in the 18-T coil system including background field coils was only 1.48 MJ at 18.4 T. The charging time of this system from 0 T to 18 T is only 12 minutes. This success encourages the development of high-performance superconductors for high-field large coils of future thermonuclear fusion machines.

• OSTI ID: 5690186
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700430 -- Fusion Technology-- Magnet Coils & Fields-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CURRENT DENSITY
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILAMENTS
MAGNETIC FLUX
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
SUPERCONDUCTING COILS
SUPERCONDUCTIVITY
THERMONUCLEAR DEVICES
TIN ALLOYS
TITANIUM ALLOYS