Patent ID: 6081987
Filing Date: 2000-07-04
Classification: H01F,Y10S,Y10T

Abstract:
A method of providing a superconducting magnetic coil for generating a magnetic field that varies along a longitudinal axis of the coil, the coil comprising:winding a first superconductor about the longitudinal axis of the coil, the first superconductor formed of an anisotropic superconducting material laminated onto a thermal stabilizing backing strip made of a conductive material and having a first resistivity characteristic in a normal state of operation;winding a second superconductor about the longitudinal axis of the coil; andconnecting to the first anisotropic superconductor, the second superconductor having a second resistivity characteristic, in a normal state of operation, less than the resistivity characteristic of the first anisotropic superconductor in a normal state of operation,wherein the first superconductor limits current flowing through the coil when the first superconductor is in the normal state of operation thereby limiting damage to the coil.