Abstract
The open space inside torus of superconducting magnetic devices, as against a fusion device, may be used for placing elements of mechanical support structure. The toroidal systems with O-shaped and racetrack-shaped coils and support elements inside torus are investigated in this paper. Two problems are solved proposed magnets configurations: elimination of bending moments in the support system and ensuring uniform mechanical stress in all support elements. Support system requirements as well as the volume of a superconducting winding and sizes of toroidal system are analyzed. The racetrack-shaped torus support system requirements are approximately the same as corresponding values for O-shaped torus with spokes and for traditional systems with geometrically more complicated banded D-shaped coils. The volume of superconducting winding of toroidal system with racetrack coils is considerably lesser in comparison with O-shaped coils and approaches to theoretical minimum for D-shaped torus. Also, the toroidal magnet with racetrack coils has minimal radial sizes as compared with other researched configurations. References 25, tables 2, figures 8.
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