COMPOSITE HIGH-TEMPERATURE SUPERCONDUCTOR MAGNETIC SHIELD Russian patent published in 2005 - IPC

FIELD: cryogenic electronics for shielding magnetic fields.

SUBSTANCE: proposed composite high-temperature superconductor magnetic shield has alternating high-temperature superconductor and conductor washers assembled into cylinder. High-temperature superconductor washers are shaped so that they can partially enter each other when shield is being assembled thereby avoiding through gaps therein perpendicular to shield axis. Prior to assembly high-temperature superconductor washers are selected according to critical current so as to ensure that j_cr ≥ 2 B_m/μ₀d, where μ₀ is magnetic constant; d is shield thickness; B_m is flux density of magnetic field being shielded. Conductor washers are, essentially, circular sections of silver-containing adhesive applied to high-temperature superconductor.

EFFECT: enhanced quality of shield; eliminating defective washers due to their adequate selection.

1 cl, 4 dwg