Compact superconducting magnet system free from liquid helium

摘要

In a superconducting magnet system which has a superconducting coil member, a cryocooler for cooling the superconducting coil member into the superconducting state, and a current lead for supplying an electric current to the superconducting coil member, the current lead is made of a high-temperature superconducting material and is also cooled by the cryocooler into the superconducting state with the current lead kept in contact with the cryocooler.