Electron thermal transport barrier and density fluctuation reduction in a toroidal helical plasma
Electron thermal transport barrier and density fluctuation reduction in a toroidal helical plasma
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DOI：
10.1103/physrevlett.82.2669
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发表时间：
1999-03-29
影响因子：
8.6
通讯作者：
Fujiwara, M
中科院分区：
文献类型：
--
作者：
Fujisawa, A;Iguchi, H;Fujiwara, M
在紧凑螺旋系统 Heliotron/Torsatron 的电子回旋共振加热等离子体的核心中建立了导致中心电子温度接近 2 keV 的热传输势垒。势垒的形成与密度波动的减少以及势垒位置处径向电场分布的结构变化相关。结果表明，波动的减少应有助于减少异常传输和势垒处电子温度的急剧升高。 [S0031-9007(99)08825-0]。
A thermal transport barrier resulting in a high central electron temperature of similar to 2 keV is established in the core of electron-cyclotron-resonance heated plasmas of the Compact Helical System Heliotron/Torsatron. The formation of the barrier is correlated with the reduction in the density fluctuations and with a structural change of the radial electric field profile at the barrier location. The results suggest that the decrease in fluctuation should contribute to a reduction of anomalous transport and a drastic increase in electron temperature at the barrier. [S0031-9007(99)08825-0].