Antonelli, Terry, Stout & Kraus
Superconducting magnet
 A beam member which is installed at diametral portion in a ring shape superconducting coil container for supporting hoop stress of the coil, or a portion of radiant heat shield covering the beam member, is partly or entirely composed of electrical insulators or high resistivity materials. In accordance with the above composition, eddy current which is generated in the coil container when the superconducting coil container crosses magnetic field caused by eddy current which is generated in the radiant heat shield when the radiant heat shield crosses strong magnetic field caused by the superconducting coils with relative vibration of the radiant heat shield to the superconducting coil by a dynamic cause can be suppressed. Accordingly, heat generation in the superconducting coil container can be reduced, and consequently, generation of quenching can be prevented. 
Hitachi, Ltd.
Y Y H Y
Y10S Y10S H01F Y10S
additional additional inventional additional
Tadasi Teruhiro Ken Yoko Fumio Hideshi
Sonobe Takizawa Yoshioka Kameoka Suzuki Fukumoto