Work

A New Degree of Freedom in Stellarator Coil Design

Year: 2026

Type: preprint

Abstract: Reversed toroidal field (RTF) coils introduce a new degree of freedom in stellarator coil design. While the total plasma-linked current is fixed by Ampere's law, compensating RTF currents allow the modular-coil current to exceed this value without altering the net linkage. This redistribution decouples key coil constraints and modifies the external coil geometry without significantly compromising the confining magnetic field. As a result, the achievable coil-plasma separation can be increased in the configurations studied, potentially enabling more compact stellarator designs.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.14396

Authors: Henneberg, Sophia A., Zettl, Annika

Institutions: Max Planck Institute for Plasma Physics - Greifswald, Massachusetts Institute of Technology

Language: English

Topic: Magnetic confinement fusion research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7221825488

Cites: 2

Cited by:

Related to: 10