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Kinetic modifications to the MHD ballooning mode

R.J. Hastie, K.W. Hesketh1981年被引用 44Nuclear FusionIF 3出版社

The effect of finite-ion-Larmor-radius averaging and of ion Landau damping on ballooning modes is investigated for a large-aspect-ratio circular-cross-section tokamak equilibrium. – Finite-Larmorradius (FLR) effects are found to be weakly de-stabilizing for small values of the FLR parameter kai, but become strongly stabilizing for kai ∼ 0.5. A residual instability driven by inverse ion Landau damping persists, however, at shorter wavelengths (kai > 0.5).

日本語訳

有限イオンラーマー半径平均化およびイオンランダウ減衰がバルーニングモードに及ぼす影響を、大アスペクト比・円形断面トカマク平衡に対して調査する。有限ラーマー半径(FLR)効果は、FLRパラメータkθの小さな値では弱い不安定化をもたらすが、kθ ≈ 0.5では強い安定化をもたらすことが見出された。しかしながら、より短い波長(kθ > 0.5)では、逆イオンランダウ減衰によって駆動される残留不安定性が持続する。

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MagnetohydrodynamicsBallooning mode
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