Galatea trap: magnetohydrodynamic stability of plasma surrounding current-carrying conductors
Autor: | S. Yu. Medvedev, Vyacheslav Vladimirovich Savelyev, A. A. Martynov, A. N. Kozlov |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Plasma Physics and Controlled Fusion. 62:115016 |
ISSN: | 1361-6587 0741-3335 |
DOI: | 10.1088/1361-6587/abb79a |
Popis: | Ideal magnetohydrodynamic (MHD) properties depending on the plasma pressure are considered for axisymmetric equilibrium magnetoplasma configurations in the Galatea trap with three ring current-carrying conductors embedded in plasma. The study of ideal MHD modes with different toroidal wave numbers takes into account the plasma compressibility with an adiabatic index of 5/3 in the perturbed potential energy functional in the framework of the energy principle. The stability calculations are performed in the presence of a vacuum layer between the plasma and the vacuum chamber. The limiting pressure values corresponding to stable multiply connected plasma configurations without an assumption of nested magnetic surfaces are estimated. |
Databáze: | OpenAIRE |
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