Edge poloidal rotation profiles of H-mode plasmas in the JFT-2M tokamak

Edge poloidal rotation profiles of H-mode plasmas in the JFT-2M tokamak
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JFT-2M 托卡马克中 H 模式等离子体的边缘极向旋转剖面

DOI:
10.1063/1.860486
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发表时间:
1991
期刊:
Physics of fluids. B, Plasma physics
影响因子:
--
通讯作者:
T. Yamauchi
T. Yamauchi
中科院分区:
--
文献类型:
--
作者:
K. Ida;S. Hidekuma;M. Kojima;Y. Miura;S. Tsuji;K. Hoshino;M. Mori;N. Suzuki;T. Yamauchi

文献摘要

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利用JFT-2 M托卡马克装置的L-和H-模等离子体光谱测量研究了边缘极向旋转径向结构的参数依赖性[Y. Miura等人,等离子体物理学和受控核聚变研究,第13届国际会议论文集,华盛顿,1990年(原子能机构,维也纳,1991年),第1卷,第325页]。极向流是在电子反磁方向上,并且在H模式转变时突然出现在等离子体边缘附近。在H模式中的极向旋转速度分布在分界线处具有峰值。没有观察到临界归一化离子碰撞性,ν*i,为L到H模式的过渡。在H模中极向流的大小与极向回转半径无关。
Parameter dependence of the radial structure of edge poloidal rotation is studied with spectroscopic measurements for L‐ and H‐mode plasmas in the JFT‐2M tokamak [Y. Miura et al., in Plasma Physics and Controlled Nuclear Fusion Research, Proceedings of the 13th International Conference, Washington 1990 (IAEA, Vienna, 1991), Vol. 1, p. 325]. The poloidal flow is in the electron diamagnetic direction and appears suddenly near the plasma edge at the H‐mode transition. The poloidal rotation velocity profile in the H mode has a peak at the separatrix. No critical normalized ion collisionality, ν*i, for the transition of the L to the H mode is observed. The size of the poloidal flow in the H mode has no dependence on the poloidal gyroradius.