Title :
Magnetic shielding properties of NbTi/Nb/Cu multilayer composite tubes
Author :
Itoh, I. ; Sasaki, T. ; Minamino, S. ; Shimizu, T.
Author_Institution :
Nippon Steel Corp., Kawasaki, Japan
fDate :
3/1/1993 12:00:00 AM
Abstract :
Magnetic shielding properties have been investigated using Hall plates at 4.2 K in a parallel magnetic field up to 4 T for superconducting cylinders with and without a bottom, which are multilayer composites consisting of NbTi, Nb, and Cu. These composite cylinders were fabricated by deep drawing a multilayer composite sheet made by cladding and rolling. It was found that a sample of five concentrically stacked cup-shaped cylinders, with a thickness of 1 mm, an inside diameter of 20-40 mm, and a length of 45 mm, can reduce the external magnetic field of 3 T to less than 10 G.<>
Keywords :
composite superconductors; copper; magnetic shielding; niobium; niobium alloys; titanium alloys; 4 T; 4.2 K; Hall plates; NbTi-Nb-Cu; NbTi/Nb/Cu multilayer composite tubes; concentrically stacked cup-shaped cylinders; magnetic shielding properties; multilayer composites; superconducting cylinders; Copper; Iron; Magnetic multilayers; Magnetic properties; Magnetic resonance imaging; Magnetic shielding; Niobium compounds; Nonhomogeneous media; Superconducting magnets; Titanium compounds;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
