Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1982-04-15
1983-10-25
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
174126S, H01F 722
Patent
active
044121954
ABSTRACT:
Disclosed is a superconducting solenoid coil of small size exhibiting a high degree of magnetic field uniformity. Emphasis is placed on the improvement in the magnetic field uniformity in a limited central active space of the coil, and, for this purpose, at least a portion of the cylindrical inner surface of the coil is shaped into a quadric configuration. The radius of curvature of this quadric portion is preferably less than a predetermined value relative to the axial total length of the coil.
REFERENCES:
patent: 4213092 (1980-07-01), Kneip
Design of High Homogeneity Inside-Notch-Connected Superconducting Solenoids, Canadian Journal of Physics, vol. 47, 1969.
Harris George
Hitachi , Ltd.
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