Electron root optimisation for stellarator reactor designs

Fuente: arXiv
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Hauptverfasser: Neto, E. Lascas, Jorge, R., Beidler, C. D., Lion, J.
Format: Preprint
Veröffentlicht: 2024
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author Neto, E. Lascas
Jorge, R.
Beidler, C. D.
Lion, J.
author_facet Neto, E. Lascas
Jorge, R.
Beidler, C. D.
Lion, J.
contents In this work, we propose a method of 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.
format Preprint
id arxiv_https___arxiv_org_abs_2405_12058
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Electron root optimisation for stellarator reactor designs
Neto, E. Lascas
Jorge, R.
Beidler, C. D.
Lion, J.
Plasma Physics
In this work, we propose a method of 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.
title Electron root optimisation for stellarator reactor designs
topic Plasma Physics
url https://arxiv.org/abs/2405.12058