Constructing the space of quasisymmetric stellarators

Abstract

A simplified view of the space of optimised stellarators has the potential to guide and aid the design efforts of magnetic confinement configurations suitable for future fusion reactors. We present one such view for the class of quasisymmetric stellarators based on their approximate description near their centre (magnetic axis). The result is a space that captures existing designs and presents new ones, providing a common framework to study them. Such a simplified construction offers a basic topological approach, guided by certain theoretical and physical choices, which this paper presents in detail.

References in corpus (7)

• Necessary and Sufficient Conditions for Quasisymmetry
• Mapping the space of quasisymmetric stellarators using optimized near-axis expansion
• A single-field-period quasi-isodynamic stellarator
• MHD stability and the effects of shaping: a near-axis view for tokamaks and quasisymmetric stellarators
• Figures of merit for stellarators near the magnetic axis
• Higher order theory of quasi-isodynamicity near the magnetic axis of stellarators
• Generalized Boozer coordinates: a natural coordinate system for quasisymmetry

Cited by in corpus (6)

• Magnetic Fields with General Omnigenity
• Collisionless zonal-flow dynamics in quasisymmetric stellarators
• The shear Alfvén continuum of quasisymmetric stellarators
• The zonal-flow residual does not tend to zero in the limit of small mirror ratio
• Near-axis quasi-isodynamic database
• Application of Lagrangian techniques for calculating the on-axis rotational transform