Title :
A fast-ramp superconducting magnet for HGMS
Author :
Yan, Luguang ; Nan, Holee ; Yu, Yunjia ; Yinming Dal ; Song, Shousen ; Ye, Zuxiang ; Chen, Yuelian
Author_Institution :
Inst. of Electr. Eng., Acad. Sinica, Beijing, China
fDate :
7/1/1996 12:00:00 AM
Abstract :
A superconducting High Gradient Magnetic Separation (HGMS) sample test facility has been constructed at the IEE CAS. In order to shorten the magnet charging time, it is necessary not only to reduce the magnet inductance, but also to increase the cryogenic stability. Based on our experience, narrow LHe channel cooling inside the high current density magnet is a good solution. In this paper, design, construction and test results are described. The solenoid is wound with 1.46 mm×2.4 mm and 1.26 mm×2.4 mm rectangular NbTi-Cu composite, the filament diameter is about 25 μm, and the length, the inner and outer diameter are 420 mm, 176 mm and 232 mm, respectively. The channel between two layers is formed by 0.5 mm×4 mm epoxy fibreglass strip along the axis. The central field of 5.45 T has been reached and the charging speed of 9 T/min has been achieved
Keywords :
magnetic separation; superconducting magnets; 5.45 T; HGMS; NbTi-Cu; NbTi-Cu fiamentary composite; charging time; cryogenic stability; current density; epoxy fibreglass strip; fast-ramp superconducting magnet; high gradient magnetic separation; inductance; narrow liquid helium channel cooling; solenoid; Content addressable storage; Cooling; Cryogenics; Current density; Inductance; Magnetic separation; Stability; Superconducting magnets; Test facilities; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
