Designing A Buildable Optimized Stellarator to Confine Electron-Positron Plasmas
Abstract
In this paper, the design of the the plasma equilibrium and superconducting coils for the Electrons and Positrons in an Optimized Stellarator EPOS experiment is presented. With newly developed stellarator optimization tools, including single-stage and stochastic optimization, as well as HTS strain, this work demonstrates that it is possible to achieve key metrics for the buildability and confinement properties of the device. In particular, satisfactory quality of quasisymmetry and stellarator robustness is designed, and engineering requirements are met for eight different candidates. A feasibility study is presented that optimizes multiple candidates for different plasma major radii and coil currents, as well as the best EPOS candidate to date.
Keywords
Cite
@article{arxiv.2603.11737,
title = {Designing A Buildable Optimized Stellarator to Confine Electron-Positron Plasmas},
author = {Pedro F. Gil and Jason Smoniewski and Paul Huslage and Rogerio Jorge and Timo Thun and Elisa Buglione-Ceresa and Tristan Schuler and Stefan Fingl and Grégoire-Hubert Ducas and Eve V. Stenson},
journal= {arXiv preprint arXiv:2603.11737},
year = {2026}
}