NONCONTACT EXCITATION SUPERCONDUCTING MAGNET DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a noncontact excitation superconducting magnet device, preventing a thermal intrusion into a low-temperature vessel in a time when exciting a superconducting magnet.

SOLUTION: The noncontact excitation superconducting magnet device is equipped with: an AC excitation power supply 2 arranged to a normal temperature part 1; and a primary exciting coil for a transformer connected to the AC excitation power supply 2 in the normal temperature part. The noncontact excitation superconducting magnet device is also equipped with, in the low-temperature vessel 4: a secondary exciting coil 3 for the transformer excited by the primary exciting coil; a rectifier 6 connected to the secondary exciting coil 3; a superconducting switch 7 connected to the rectifier 6; and a superconducting magnet 6 connected in parallel with the superconducting switch 7.

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