Patent ID: 8694066

Claim:
A superconducting magnet system for high power microwave source focusing and cyclotron electronic apparatus, comprising: a cryocooler, a vacuum vessel, a supporting rod, a thermal radiation shield, and a low temperature system and superconducting magnet, characterized in that: in said superconducting magnet system, the superconducting magnet includes an inner superconducting main coil, an outer superconducting main coil, an end compensating coil, a regulating coil and a central regulating coil; said inner superconducting main coil, said outer superconducting main coil, said end compensating coil, said regulating coil and said central regulating coil are co-axially arranged; said inner superconducting main coil operates in a low current density state; said outer superconducting main coil is located outside said inner superconducting main coil and operates in a high current density state; said inner superconducting main coil and said outer superconducting main coil work together to generate a main magnetic field of the magnet system; said outer superconducting main coil is coiled around the outside surface of the inner superconducting main coil and has a length same as that of the inner superconducting main coil; on the outside surface of said outer superconducting main coil, the end compensating coil, the regulating coil and the central regulating coil are arranged in turn from the ends of the magnet; the superconducting magnet has a heat exchanger wounded around its surface; the heat exchanger is connected to a high-pressure nitrogen container; said cryocoolers cools the superconducting magnet and the high-pressure nitrogen container; all the superconducting coils are connected to a superconducting switch through superconducting joint, forming a closed-loop steady current.