Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 49 / Number 2T / Pages 43-55
D. A. Hartmann
Fusion Science and Technology / Volume 49 / Number 2T / Pages 43-55
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Stellarators are toroidal devices where the required rotational transform of the magnetic field lines is generated by external field coils and not via an induced net toroidal plasma current. This confinement scheme has the advantages that, in principle, steady-state plasma operation is possible and that it does not have to brace itself against disruptions of a toroidal plasma current. At the cost of having to give up toroidal symmetry the properties of the stellarator field can be tailored to suit reactor needs. Research focuses on the plasma confinement properties of different stellarator fields and investigates the problems arising when one extrapolates to reactor parameters.
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