Critical gradient turbulence optimization toward a compact stellarator reactor concept
Plasma Physics
2023-11-03 v2
Abstract
Integrating turbulence into stellarator optimization is shown by targeting the onset for the ion-temperature-gradient mode, highlighting effects of parallel connection length, local magnetic shear, and flux surface expansion. The result is a compact quasihelically symmetric stellarator configuration, admitting a set of uncomplicated coils, with significantly reduced turbulent heat fluxes compared to a known stellarator. The new configuration combines low values of neoclassical transport, good alpha particle confinement, and Mercier stability at a plasma beta of almost 2.
Cite
@article{arxiv.2301.06773,
title = {Critical gradient turbulence optimization toward a compact stellarator reactor concept},
author = {G. T. Roberg-Clark and G. G. Plunk and P. Xanthopoulos and C. Nührenberg and S. A. Henneberg and H. M. Smith},
journal= {arXiv preprint arXiv:2301.06773},
year = {2023}
}
Comments
5 pages, 5 figures. Phys. Rev. Research 5, L032030 (2023)