Stellarators with enhanced tritium confinement and edge radiation control

TL;DR

This paper presents a novel stellarator design aimed at improving tritium confinement, controlling edge radiation, and maintaining a burning plasma state with specific impurity and density profiles.

Contribution

The paper introduces a new stellarator configuration that enhances tritium confinement and manages impurity radiation, with potential applications to tokamak designs.

Findings

Improved tritium confinement time.

Controlled impurity radiation in edge regions.

Maintenance of a burning plasma with balanced deuterium-tritium ratio.

Abstract

A stellarator design is described with the purpose of achieving three goals: (1) Enhance the confinement time of tritium. (2) Have a sufficient density of high-Z impurities to radiate the thermal power escaping from the core while having an extremely low impurity density in the core. (3) Maintain a large fraction of the plasma in a burning plasma state with a 50/50 deuterium tritium ratio. Some features of this design could be used in tokamaks. Although having three confinement zones is natural for stellarators, it is not for tokamaks.