A conduction cooled superconducting magnet using high-Tc oxide current leads

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

DOI:https://doi.org/10.1109/20.305634· OSTI ID:32111

Hata, F; Sakuraba, J; Chong, C K; Yamada, Y; Hasebe, T; Ishihara, M ^[1]; Watanabe, K ^[2]

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1. Sumitomo Heavy Industries, Ltd., Hiratsuka (Japan)
2. Tohoku Univ., Sendai (Japan). Inst. for Materials Research

The authors demonstrated a conduction cooled (Nb,Ti){sub 3}Sn superconducting magnet system without liquid helium. The magnet system is mainly composed of (Nb,Ti){sub 3}Sn superconducting coil, high-Tc oxide current leads, a GM cryocooler and a cryostat. The (Nb,Ti){sub 3}Sn superconducting coil cooled by the second stage of the cryocooler is operated at 11 K in vacuum. The cylindrical (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3} oxide current leads were cooled below 77 K by the cryocooler. This system generates a magnetic field of 4.6 T in a 38 mm room temperature bore at the operating current of 465 A. 2 hours holding at the operating current of 400 A were performed.

• OSTI ID: 32111
• Report Number(s): CONF-930926-; ISSN 0018-9464; TRN: IM9517%%406
• Journal Information: IEEE Transactions on Magnetics, Vol. 30, Issue 4Pt2; Conference: 13. international conference on magnet technology, Victoria (Canada), 20-24 Sep 1993; Other Information: PBD: Jul 1994
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SUPERCONDUCTING MAGNETS
PERFORMANCE
DESIGN
NIOBIUM BASE ALLOYS
TITANIUM ALLOYS
TIN ALLOYS
HIGH-TC SUPERCONDUCTORS
BISMUTH OXIDES
LEAD OXIDES
STRONTIUM OXIDES
CALCIUM OXIDES
COPPER OXIDES
CONDUCTOR DEVICES
COOLING SYSTEMS
PERFORMANCE TESTING