An Energy Integral and Variational Principle for Plasma Kinetic Modes
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概要
- 論文の詳細を見る
An energy principle is extended to include kinetic processes, finite gyroradius effectsand wave-particle interactions, irn electromagnetic instabilities in a toroidal plasma. Thepresent arguments are based on the energy integrals which are derived from theeigenmode equations for electromagnetic perturbations. First, the finite gyroradiuseffects are included in the energy integral and it is shown that this integral can be usedfor determining the eigenmode by minimizing the excess energy of the perturbed state.The generalized stability conditions for kink-like mode and ballooning mode areobtained by use of this improved energy principle. For the case where wave-particleinteraction is important, the energy integral becomes a rate equation of energyexchange, and a variational form can independently be constructed for the modeanalysis.
- 1982-03-15
著者
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Terashima Yoshinosuke
Institute Of Plasma Physics Nagoya Univ.
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Itoh Kimitaka
Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute
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Itoh Sanae
Institute For Fusion Theory Hiroshima Univ
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Inoue Itoh
Institute for Fusion Theory,Hiroshima University
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Terashima Yoshinosuke
Plasma Science Center,Nagoya University
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