Characteristics of electron heat transport of plasma with an electron internal-transport barrier in the large helical device
Characteristics of electron heat transport of plasma with an electron internal-transport barrier in the large helical device
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DOI：
10.1103/physrevlett.91.085003
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发表时间：
2003-08-22
影响因子：
8.6
通讯作者：
Ohyabu, N
中科院分区：
文献类型：
--
作者：
Ida, K;Shimozuma, T;Ohyabu, N
当电子回旋共振加热功率超过阈值功率时，在大螺旋器件中出现了与离子根向电子根转变有关的电子内输运势垒（ITB）。ITB等离子体中的电子热输运增量热扩散率chi（e）（inc）远低于阈值加热功率下的等离子体，热扩散率chi（e）随加热功率的增大而减小[dchi（e）/d（P/n（e））]
Associated with the transition from ion root to electron root, an electron internal transport barrier (ITB) appears in the large helical device, when the heating power of electron cyclotron resonance heating exceeds the threshold power. The incremental thermal diffusivity of electron heat transport chi(e)(inc) in the ITB plasma is much lower than that in the plasma with the heating power below the threshold, and the thermal diffusivity chi(e) decreases with increasing of heating power [dchi(e)/d(P/n(e))