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Conceptual Approach to the Design of 50-Tesla Hyper-Field Superconducting Magnetic Coils

机译：50特斯拉超场超导磁体线圈设计的概念方法

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Perhaps one of the principle advantages of the ''open-ended'' geometry afforded by the mirror fusion reactor designs, in contrast to that of the tokamak proposals, is the potential future upgradability of these systems to also encompass advanced fusion fuel cycles. This is the combined result of both the ability to convert the energy of the escaping charged particles directly into electricity and from a magnet design viewpoint; the much higher required containment field strengths (between 40 to 50 T in the mirror choke coils and approximately 12 T in the central cell magnets) dictate that the tokamak geometry lacks adequate real estate for structural support against the resulting electromagnetic stresses. The latter consideration is highlighted by F. Moon's report on the ''Virial Theorem,'' which states that the minimal amount of structural mass needed for a magnet scales as both the magnetic stored energy and a multiplicative factor that increases with the geometric complexity of the proposed magnet system. Solenoids are, of course, the simplest source of fields, which implies that if strengths of 40 to 50 T are indeed possible, we should first seek their production in this geometry. (ERA citation 10:050671)

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