Experimental arrangement for controlled nuclear fusionSee 'fusion'.. In a stellarator, the screw-like twisting of field lines around the torus centre is generated by external coils. In contrast to the TokamakExperimental arrangement for controlled nuclear fusion. In a..., a stellarator does not need a direct-axis flow component in the plasmaElectrically neutral gas mixture of ions, electrons and neut.... The stellarator can therefore function statically in principle. In a stellarator, the magnetic field cage is formed by a single coil system. The abandonment of the annular plasmaElectrically neutral gas mixture of ions, electrons and neut... flow signifies, however, the abandonment of the axial symmetry existing in Tokamaks; plasmaElectrically neutral gas mixture of ions, electrons and neut... and magnetic coils have a more complicated shape. For a fusionFormation of a heavy nucleus from lighter nuclei releasing e... power plant, the stellarators could provide a technically simpler solution than Tokamaks. This issue cannot be answered theoretically; it must be decided by experiments which is the aim of the WENDELSTEIN experiments of the Max Planck Institute for Plasma PhysicsThe Max-Planck-Institut für Plasmaphysik (IPP) is concerned....
Principle of the stellarator