Patent ID: 8279030

Claim:
A superconductive magnet assembly comprising: a superconductive coil having one or more windings of superconductive material; a winding housing formed by a first conduit structure circumscribing a central region and closing on itself to form a first enclosed inside region within the first conduit structure, said first enclosed inside region containing the superconductive coil with the one or more windings wound around the central region, said winding housing having an outer surface; a region of thermal insulation encasing the outer surface of the winding housing to form a first annular structure that circumscribes the central region, wherein the winding housing and the first annular structure together form a superconducting coil subassembly circumscribing the central region; a coil head container formed by a second conduit structure circumscribing the central region and closing on itself to form a second enclosed inside region within the coil head container, wherein said second conduit structure has an electrically conductive outer surface and said second enclosed inside region completely contains the superconductive coil subassembly, wherein the coil head container and the superconductive coil subassembly within the coil head container form a coil head assembly; and a plurality of strut supports attached to the coil head assembly and for supporting and holding the coil head assembly at a predetermined distance from a first surface, wherein the plurality of strut supports extend away from the coil head assembly toward a hypothetical plane that is parallel to and on one side of the coil head assembly, and wherein the plurality of strut supports support said coil head assembly and no other coil head assembly, wherein during use a high voltage V max is applied to the coil head container, wherein the predetermined distance is D and is characterized by an effective dielectric strength K, and wherein D is selected to be greater than V max /K.