Quasi-symmetry can greatly improve the confinement of energetic particles and thermal
plasma in a stellarator. The magnetic field of a quasi-symmetric stellarator at high plasma …

The separation between the last closed flux surface of a plasma and the external coils that
magnetically confine it is a limiting factor in the construction of fusion-capable plasma …

We introduce a novel approach for the simultaneous optimization of plasma physics and coil
engineering objectives using fixed-boundary equilibria that is computationally efficient and …

Collisionless physics primarily determines the transport of fusion-born alpha particles in 3D
equilibria. Several transport mechanisms have been implicated in stellarator configurations …

A common scientific inverse problem is the placement of magnets that produce a desired
magnetic field inside a prescribed volume. This is a key component of stellarator design and …

A first-of-a-kind optimized stellarator for confining plasma has been designed and is being
constructed with planar circular coils and permanent magnets composed of identical …

This paper documents the design and construction of MUSE, the world's first permanent
magnet (PM) stellarator and the first quasi-axisymmetric experiment. The purpose of MUSE …

We propose a new method to compute magnetic surfaces that are parametrized in Boozer
coordinates for vacuum magnetic fields. We also propose a measure for quasisymmetry on …

We present a robust optimization algorithm for the design of electromagnetic coils that
generate vacuum magnetic fields with nested flux surfaces and precise quasi-symmetry. The …

Topology optimization, a technique to determine where material should be placed within a
predefined volume in order to minimize a physical objective, is used across a wide range of …