Superconducting dipole magnet with cold iron

Journal Article · Sun May 01 04:00:00 EDT 1983 · IEEE Trans. Magn.; (United States)

DOI:https://doi.org/10.1109/TMAG.1983.1062271· OSTI ID:5747330

Han, S; Feng, Z; Gao, Z; Huang, H; Kuang, Y; Luo, K; Song, S; Zhang, C

The paper presents mainly the design of a superconducting dipole with cold iron, the parameters selected for the iron shield, the effect of iron shield on field in bore and the results of experiment. The dipole is made of NbTi braid of 29 strands. Each strand has a diameter of 0.3 mm and the smallest ratio of copper to superconductor (1:1). The conductor is wrapped by mylar tape as insulation. The cross section of the conductor is 0.8 X 5.9 mm/sup 2/. This dipole has 10 cm inner diameter, 15.2 cm outer diameter and 46 cm outer diameter of cold iron. It is excited both by direct current and by pulse current. Very little training is observed at full field. After four times of quench, the field normally reached 4.6T at 1190A. The magnet current was about 89% of short sample. The field of dipole with cold iron shield increases in bore by 30% over the field of dipole without iron shield.

• Research Organization: Institute of Electrical Eng., Academia Sinica, Beijing
• OSTI ID: 5747330
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 19:3; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CROSS SECTIONS
CURRENTS
DESIGN
DIPOLES
DIRECT CURRENT
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
IRON
MAGNET COILS
MAGNETIC DIPOLES
MAGNETIC FIELDS
MAGNETIC INSULATION
MAGNETIC SHIELDING
MAGNETS
METALS
MULTIPOLES
NIOBIUM
NIOBIUM ALLOYS
PULSED MAGNET COILS
QUENCHING
SHIELDING
SHIELDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING WIRES
TIN
TITANIUM ALLOYS
TRANSITION ELEMENTS
WIRES