Edge thermal transport barrier In LHD discharges
Edge thermal transport barrier In LHD discharges
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LHD 放电中的边缘热传输屏障
DOI：
10.1103/physrevlett.84.103
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发表时间：
2000
影响因子：
8.6
通讯作者：
Muto
中科院分区：
文献类型：
--
作者：
Ohyabu;Narihara;Funaba;Morisaki;Masuzaki;Kawahata;Komori;Kaneko;Yamada;Devries;Emoto;Goto;Hamada;Ida;Idei;Inagaki;Inoue;Kado;Kubo;Kumazawa;Minami;Miyazawa;Morita;Murakami;Mutoh.;Muto
在 LHD 放电中，首次在具有边缘热障的螺旋装置中实现了全局能量限制的显着增强，该装置在温度分布的边缘表现出急剧的梯度。与势垒相关的关键特征与托卡马克中看到的有很大不同：（i）粒子（包括杂质）传输几乎没有变化，（ii）势垒逐渐形成，（iii）边缘温度与平均温度的比率非常高，以及（iv）没有边缘松弛现象。这些特性对于将热障应用于未来的反应堆级设备非常有吸引力。
In LHD discharges a significant enhancement of the global energy confinement has been achieved for the first time in a helical device with an edge thermal barrier, which exhibits a sharp gradient at the edge of the temperature profile. Key features associated with the barrier are quite different from those seen in tokamaks: (i) almost no change in particle (including impurity) transport, (ii) a gradual formation of the barrier, (iii) a very high ratio of the edge temperature to the average temperature, and (iv) no edge relaxation phenomenon. These features are very attractive in applying the thermal barrier to future reactor grade devices.