Demountable Toroidal Field Magnets for Use in a Compact Modular Fusion Reactor
Author(s)Mangiarotti, Franco Julio; Goh, Jonathan Yanming; Takayasu, Makoto; Bromberg, Leslie; Minervini, Joseph V; Whyte, Dennis G; ... Show more Show less
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A concept of demountable toroidal field magnets for a compact fusion reactor is discussed. The magnets generate a magnetic field of 9.2 T on axis, in a 3.3 m major radius tokamak. Subcooled YBCO conductors have a critical current density adequate to provide this large magnetic field, while operating at 20 K reduces thermodynamic cooling cost of the resistive electrical joints. Demountable magnets allow for vertical replacement and maintenance of internal components, potentially reducing cost and time of maintenance when compared to traditional sector maintenance. Preliminary measurements of contact resistance of a demountable YBCO electrical joint between are presented.
DepartmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Plasma Science and Fusion Center
Journal of Physics: Conference Series
Mangiarotti, F J, J Goh, M Takayasu, L Bromberg, J V Minervini, and D Whyte. “Demountable Toroidal Field Magnets for Use in a Compact Modular Fusion Reactor.” Journal of Physics: Conference Series 507, no. 3 (May 12, 2014): 032030.
Final published version