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  • Letter
  • Open Access

Exploring novel compact quasi-axisymmetric stellarators

T. M. Schuett*

S. A. Henneberg

  • York Plasma Institute, School of Physics, Engineering and Technology, University of York, Heslington YO10 5DD, United Kingdom

  • *Contact author: tobias.schuett@york.ac.uk
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Phys. Rev. Research 6, L042052 – Published 2 December, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L042052

Abstract

The new class of compact quasi-axisymmetric stellarators with a wide range of field periods offers the unique potential to combine the advantages of the two leading magnetic confinement fusion devices, tokamaks and stellarators. Here, we present the numerical optimization of this class which has so far only been obtained analytically. Our approach finds significantly improved quasi-axisymmetric equilibria at aspect ratio <2.5, resulting in no losses of alpha particles at reactor volume while also satisfying improved magnetohydrodynamic stability and a self-consistent plasma current.

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Outline

Information

Phys. Rev. Research 6, L042052– Published 2 December, 2024
  • Received 28 May 2024
  • Accepted 2 November 2024
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