Minimizing Separatrix Crossings through Isoprominence

Autor: Burby, Joshua W., Duignan, Nathan, Meiss, James D.
Rok vydání: 2022
Předmět:
Zdroj: Plasma Physics and Controlled Fusion 65(4): 045004 (2022)
Druh dokumentu: Working Paper
DOI: 10.1088/1361-6587/acb968
Popis: 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.
Comment: 17 pages, 7 figures
Databáze: arXiv