Patent ID: 7616083

Claim:
A resin-impregnated superconducting magnet coil comprising a number of turns of superconducting wire embedded within a resin having an outer filler layer composed of the resin, filled with filler material characterized in that the coil further comprises a cooling layer interposed between an outer surface of the superconducting wire turns and the filler layer, the cooling layer comprising a layer of a material of greater thermal conductivity than the thermal conductivity of the resin or the material of the filler layer and a block part in thermal contact with a portion of the cooling layer that is interposed between an outer surface of the superconducting wire and the filler layer, the block part being arranged for cooling to below the critical temperature of the superconducting wire, wherein the cooling layer is of anodized aluminum, add and wherein the block part is arranged outside of the portion of the cooling layer that is interposed between the outer surface of the superconducting wire and the filler layer.