What is the “beta-induced Alfvén eigenmode?”
نویسندگان
چکیده
منابع مشابه
Nonlinear dynamics of beta-induced Alfvén eigenmode driven by energetic particles.
Nonlinear saturation of a beta-induced Alfvén eigenmode, driven by slowing down energetic particles via transit resonance, is investigated by the nonlinear hybrid magnetohyrodynamic gyrokinetic code. Saturation is characterized by frequency chirping and symmetry breaking between co- and counter-passing particles, which can be understood as the evidence of resonance detuning. The scaling of the ...
متن کاملNonlinear dynamics of beta-induced Alfv en eigenmode in tokamak
H. S. Zhang, Z. Lin, W. Deng, I. Holod, Z. X. Wang, Y. Xiao, and W. L. Zhang Fusion Simulation Center, Peking University, Beijing 100871, China Department of Physics and Astronomy, University of California, Irvine, California 92697, USA Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, China CAS Key Laboratory of Plasma Physics, University of Science and Technolo...
متن کاملGyrokinetic particle simulation of beta-induced Alfvén eigenmode
H. S. Zhang, Z. Lin, I. Holod, X. Wang, Y. Xiao, and W. L. Zhang Fusion Simulation Center and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697, USA Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, China CAS Key Laborator...
متن کاملAnomalous flattening of the fast-ion profile during Alfvén-Eigenmode activity.
Neutral-beam injection into plasmas with negative central shear produces a rich spectrum of toroidicity-induced and reversed-shear Alfvén eigenmodes in the DIII-D tokamak. The first application of fast-ion D_{alpha} (FIDA) spectroscopy to Alfvén-eigenmode physics shows that the central fast-ion profile is anomalously flat in the inner half of the discharge. Neutron and equilibrium measurements ...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 1999
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.873359