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Flow shear stabilization of a hybrid dissipative trapped electron-ion temperature gradient mode in tokamaks

L Bai, A Fukuyama, M Uchida1998年Plasma Physics and Controlled FusionIF 2.2出版社

A simple physical model for toroidal flow shear stabilization of a hybrid dissipative trapped electron-ion temperature gradient mode (namely, the hybrid electron-ion drift mode) is presented. Coupling between the sheared flows and non-adiabatic electrons is proposed as the stabilization mechanism of the hybrid electron-ion drift mode. This implies that the confinement improvement can be achieved not only through the poloidal sheared rotation flow in the edge region of tokamaks for the L-H transition but also through the toroidal sheared rotation in the core region for further confinement improvement associated with the internal transport barrier and negative shear.

日本語訳

トカマクにおけるL-H遷移のためのエッジ領域でのポロイダルせん断回転流だけでなく、内部輸送障壁と負のシアに関連するコア領域でのさらなる閉じ込め改善のためのトロイダルせん断回転流を通じても、閉じ込め改善が達成できることを示唆する。混合散逸捕捉電子-イオン温度勾配モード(すなわち、混合電子-イオンドリフトモード)のトロイダル流シア安定化のための簡単な物理モデルが提示される。せん断流と非断熱電子との結合が、混合電子-イオンドリフトモードの安定化機構として提案される。

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Ion temperature gradientTrapped electronTemperature gradient modeFlow shear
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