Complete and robust magnetic field confinement by superconductors in fusion magnets.

ABSTRACT: The fusion created by magnetically confined plasma is a promising clean and essentially unlimited future energy source. However, there are important problems hindering controlled fusion like the imperfect magnetic confinement and the associated plasma instabilities. We theoretically demonstrate how to create a fully confined magnetic field with the precise three-dimensional shape required by fusion theory, using a bulk superconducting toroid with a toroidal cavity. The vacuum field in the cavity consists of nested flux surfaces. The coils creating the field, embedded in the superconducting bulk, can be chosen with very simple shapes, in contrast with the cumbersome arrangements in current experiments, and can be spared from large magnetic forces between them. Because of the superconductor

SUBMITTER: Bort-Soldevila N 

PROVIDER: S-EPMC10864317 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature