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Theoretical Field and Coil Design for a Single Cell Minimum-B Mirror Hybrid Reactor

A. Hagnestål, O. Ågren, V. E. Moiseenko

Fusion Science and Technology / Volume 59 / Number 1T / Pages 217-219

January 2011

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A vacuum magnetic field from a superconducting coil set for a single cell minimum-B mirror-based fission-fusion reactor is computed. The magnetic field is optimized for MHD stability, ellipticity and field smoothness. A recirculation region and wide magnetic expanders on both sides are provided to the central mirror cell. A coil set producing this field is computed which consists of circular and quadrupolar coils. Basic scaling assumptions are made for the coil dimensions, based on a maximum allowed current density of 1.5 kA/cm2 for superconducting coils. Sufficient space is available for a fission mantle. The field produced by the coils is checked for MHD plasma stability and maximum ellipticity. The resulting confinement region is 25 m long with a 40 cm midplane plasma radius.

 
 
 
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