Patent ID: 7215230

Claim:
A method for calculating a shape of at least one band-shaped superconductor in at least one coil section of a high-field magnet coil, the shape extending through a transfer region towards or away from that coil section, the coil section being wound in a solenoid fashion on a cylindrical coil body, the method comprising the step of: mapping the band-shaped superconductor in the transfer region between a first orientation, tangentially flatly abutting a surface of the cylindrical coil body and substantially perpendicular to a longitudinal direction of that cylindrical coil body, and second orientation in which a narrow side of the band-shaped superconductor seats on the surface of the cylindrical coil body and extends substantially parallel to the longitudinal direction, wherein a path z(u) of the band shaped superconductor through the transfer region is determined from the following integral-differential equation z ″ ⁡ ( u ) ( 1 + z ′ ⁡ ( u ) 2 ) 3 2 = sin ⁡ ( τ ⁢ ∫ 0 u ⁢ ⁢ ⅆ u ^ ⁢ 1 + z ′ ⁡ ( u ^ ) 2 ) r min wherein z is a coordinate of the band-shaped superconductor in the longitudinal direction of the coil body, u an azimuthal coordinate of the band-shaped superconductor, û an auxiliary coordinate, τ a constant torsion in the transfer region, and r min a minimum bending radius of the band-shaped superconductor about its wide side, wherein z=0, u=0 defines a boundary point of the transfer region.