Minimizing Separatrix Crossings through Isoprominence
Plasma Physics
2023-06-08 v1
Abstract
A simple property of magnetic fields that minimizes bouncing to passing type transitions of guiding center orbits is defined and discussed. This property, called isoprominence, is explored through the framework of a near-axis expansion. It is shown that isoprominent magnetic fields for a toroidal configuration exist to all orders in a formal expansion about a magnetic axis. Some key geometric features of these fields are described.
Keywords
Cite
@article{arxiv.2210.10218,
title = {Minimizing Separatrix Crossings through Isoprominence},
author = {Joshua W. Burby and Nathan Duignan and James D. Meiss},
journal= {arXiv preprint arXiv:2210.10218},
year = {2023}
}
Comments
17 pages, 7 figures