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Observation of ion-cyclotron-frequency mode conversion plasma rotation on HT-7

机译:HT-7离子-回旋-频率模式转换等离子体旋转的观察

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摘要

In this paper, we present a study on DH (7_(Li)) plasmas with moderate hydrogen concentration (15%) on the HT-7 tokamak. Enhanced density fluctuation induced by ion cyclotron range of frequencies (ICRF) at the centre of the plasma is observed by a continuous wave CO _2 (λ = 10.6 μm) collective scattering system. At the same time, the Doppler shift V _D due to E → × B → plasma rotation in the mode-converted ICRF DH (~7Li) plasmas is observed experimentally for the first time on the HT-7 tokamak, and the Doppler shift V _D is approximately linear versus the change in plasma stored energy ΔW.
机译:在本文中,我们提出了在HT-7托卡马克上具有中等氢浓度(15%)的DH(7_(Li))等离子体的研究。通过连续波CO _2(λ= 10.6μm)集体散射系统,观察到了等离子体中心的离子回旋加速器频率范围(ICRF)引起的增强的密度波动。同时,在HT-7托卡马克上首次在模式转换后的ICRF DH(〜7Li)等离子体中观察到由E→×B→等离子体旋转引起的多普勒频移V _D,并且多普勒频移V _D与等离子体存储能量ΔW的变化大致成线性关系。

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