Minimizing Separatrix Crossings through Isoprominence
Autor: | Burby, Joshua W., Duignan, Nathan, Meiss, James D. |
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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 |
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