Magnetic shielding network with superconducting wires

Magnetic shielding networks have been studied, aiming at a practical use of superconducting shields against high and pulsed magnetic fields. The NbTi multifilamentary composite wires were chosen for the shielding material because they show high magnetic stabilities against pulsed fields compared with those of the bulky superconductors. The shielding networks in the shape of cylinders and plates were made by soldering the junctions of wires. The static and pulsed magnetic fields, of which maximum field was 3T, were applied to the shieldings, and the field distributions inside and outside of the shielding were measured. It was confirmed experimentally that the superconducting networks showed high shielding efficiency and capability of shielding the magnetic field with complicated distribution.