Design and fabrication of pool cooled helical coil as an R and D program for large helical device

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5690619

Yanagi, N; Takahata, K; Mito, T; Yamamoto, J; Motojima, O ^[1]; Saito, R; Suzuki, S; Iida, F; Ogata, H ^[2]

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1. National Inst. for Fusion Science, Nagoya 464-01 (JP)
2. Hitachi Ltd., Hitachi 317 (JP)

A pool cooled NbTi superconducting helical coil system (named TOKI-HB) has been fabricated as one of the research and development programs for Large Helical Device (LHD). The main purpose of the construction of this device is to build an entire pool cooled superconducting helical coil system which is large enough to be extrapolable to LHD. The helical coil has the major radius of 0.8m and the minor radius of 0.2m with helical pitch number, m, of 3. Operating current of 8.9 kA produces maximum magnetic field of 0.75 T at the geometrical center of the poloidal cross section and 3T at the coil surface. In this paper basic design concepts of TOKI-HB device is described together with some issues on the fabrication.

• OSTI ID: 5690619
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CLOSED PLASMA DEVICES
CONFIGURATION
DESIGN
FABRICATION
HELICAL CONFIGURATION
MAGNETIC FIELDS
NIOBIUM ALLOYS
RESEARCH PROGRAMS
SUPERCONDUCTING COILS
THERMONUCLEAR DEVICES
TITANIUM ALLOYS