Energetic Particle Effects Can Explain the Low Frequency of Alfvin Modes in the DIII-D Tokamak | Zendy

Н. Н. Гореленков | Zendy; W. W. Heidbrink | Zendy

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Energetic Particle Effects Can Explain the Low Frequency of Alfvin Modes in the DIII-D Tokamak

Author(s) -

Н. Н. Гореленков,

W. W. Heidbrink

Publication year - 2001

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/775570

Subject(s) - diii d , tokamak , physics , atomic physics , particle (ecology) , mode (computer interface) , beam (structure) , nuclear physics , ion , beta (programming language) , plasma , computational physics , optics , quantum mechanics , oceanography , computer science , programming language , geology , operating system

During beam injection in the DIII-D tokamak, modes with lower frequencies than expected for toroidicity-induced Alfvin eigenmodes (TAE) are often observed. We present the analysis of one of these ''beta-induced Alfvin eigenmodes'' (BAE) with a high-n stability code HINST that includes the effect of the energetic ions on the mode frequency. It shows that the ''BAE'' could be the theoretically predicted resonant-TAE (RTAE), which is also called an energetic-particle mode (EPM)

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