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High beta plasmas and internal barrier dynamics in JET discharges with optimized shear

P. Buratti, JET Team2001年被引用 2Nuclear FusionIF 3出版社

High βN conditions have been sustained in JET discharges with an internal transport barrier (ITB) by controlling edge conditions and pressure peaking. The behaviour of ideal and resistive MHD instabilities at high βN has been studied as a function of pressure peaking. The duration of the high βN phase was limited by interaction with the septum of the Gas Box divertor. ITB triggering and evolution are in good agreement with the condition for turbulence suppression by E × B shear flow.

日本語訳

高βN条件は、内部輸送障壁(ITB)を有するJET放電において、エッジ条件と圧力ピーキングを制御することにより維持された。高βNにおける理想および抵抗性MHD不安定性の挙動は、圧力ピーキングの関数として研究された。高βN位相の持続時間は、ガスボックスダイバータのセプタムとの相互作用によって制限された。ITBの形成と発展は、E×Bシア流による乱流抑制の条件と良好に一致している。

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