Patent ID: 11972898
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A superconducting magnet comprising:
a coil including
a superconducting layer having a first portion and a second portion, and
a joining portion; and

a cryostat in which the coil is stored, wherein
the first portion and the second portion are located in a termination portion of the coil,
the superconducting layer forms a closed loop by superconducting-joining of the first portion and the second portion at the joining portion,
the superconducting layer is made of a high-temperature superconductor,
a current flows through the joining portion in a superconducting state when a magnetic field equal to or greater than 1.0 tesla and equal to or less than 5.0 tesla is applied to the joining portion at 77 kelvin, and
the cryostat is configured such that a temperature inside the cryostat is equal to or greater than 2.0 kelvin and equal to or less than 77 kelvin,
the coil is a solenoid coil,
the joining portion is disposed at a position where a distance from an end of the coil in a coil length direction is equal to or greater than 0.033 times and equal to or less than 0.23 times as large as a coil length of the coil and where a strength of a magnetic field generated by a current flowing through the coil is equal to or greater than 1.0 tesla and equal to or less than 5.0 tesla, and
the joining portion is disposed proximal to the end of the coil in the coil length direction.