Electron root optimisation for stellarator reactor designs
In this work, we propose a method for optimising stellarator devices to favour the presence of an electron root solution of the radial electric field. Such a solution can help avoid heavy impurity accumulation, improve neoclassical thermal ion confinement and helium ash exhaust, and possibly reduce turbulence. This study shows that an optimisation for such a root is possible in quasi-isodynamic stellarators. Examples are shown for both vacuum and finite plasma pressure configurations.
Authors
- J. Lion (ORCID: https://orcid.org/0000-0002-6249-2368)
- E. Lascas Neto (ORCID: https://orcid.org/0000-0002-2035-3191)
- C. D. Beidler (ORCID: https://orcid.org/0000-0002-4395-239X)
- R. Jorge (ORCID: https://orcid.org/0000-0003-2941-6571)
Institutions
- University of Wisconsin–Madison (US)
- University of Lisbon (PT)
- Max Planck Institute for Plasma Physics - Greifswald (DE)
- Plasma Technology (United States) (US)
Publication Details
- Journal
- Journal of Plasma Physics
- Published
- 2025-01-22
- DOI
- https://doi.org/10.1017/s0022377824001466
- Citations
- 2
- Primary Topic
- Magnetic confinement fusion research
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- National Science Foundation
- U.S. Department of Energy
- National Energy Research Scientific Computing Center
- EUROfusion
- European Commission
- Office of Science
- Euratom Research and Training Programme
- Fundação para a Ciência e a Tecnologia
- Office of Advanced Cyberinfrastructure