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Multiple toroidal Alfven eigenmodes with a single toroidal mode number in KSTAR plasmas

H. Rizvi, C.M. Ryu, Z. Lin2016年被引用 6Nuclear FusionIF 3出版社

Simultaneous excitation of multiple discrete toroidal Alfven eigenmodes (TAEs) for a single toroidal mode number have been observed in KSTAR plasmas. Excitation and characteristics of these modes are studied by using a global gyrokinetic particle-in-cell simulation code. It is shown that compared to a single core-localized mode, excitation of two modes is difficult. The frequency difference between the double TAEs studied from simulation seems to agree well with the experimental value. Details of studies on the frequency, growth rate, mode structures, etc, using the GTC simulation are presented.

日本語訳

単一のトロイダルモード数に対する複数のトロイダルアルヴェン固有モード(TAE)の同時励起が、KSTARプラズマにおいて観測された。これらのモードの励起と特性は、大域的ジャイロ運動論的粒子セルシミュレーションコードを用いて研究された。単一のコア局在モードと比較して、2つのモードの励起は困難であることが示された。シミュレーションから得られた二重TAEの周波数差は、実験値とよく一致しているように思われる。GTCシミュレーションを用いた周波数、成長率、モード構造などの研究の詳細が提示される。

装置

kstar高精度(タイトル一致)

wiki

Alfvén waveKSTARAlfvén eigenmodeToroidal Alfvén Eigenmode
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