Quasisymmetry
Quasisymmetric (quasihelically symmetric) plasma equilibria are non-axisymmetric configurations in which the magnetic field strength depends only on one angular coordinate within the magnetic flux surfaces. [1]
Examples of quasisymmetry:
- Quasihelical symmetry, on which the design of the HSX stellarator is based.
- Quasipoloidal symmetry, on which the design of the QPS stellarator is based.[2]