Overview of the recent experimental results in JT-60 and JFT-2M
Overview of the recent experimental results in JT-60 and JFT-2M
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JT-60和JFT-2M近期实验结果概述
DOI：
10.1088/0741-3335/36/7a/004
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发表时间：
1994
影响因子：
2.2
通讯作者：
M. Mori
中科院分区：
文献类型：
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作者：
M. Mori
报道了最近在JT-60U和JFT-2M上的h模实验结果。在JT-60U中，具有边缘输运势垒的增强约束模式（h模式）具有高边缘离子温度的特点。约束强度的提高与边缘离子温度密切相关。JT-60U在低磁场下（约2 T）的h模式与JFT-2M中的h模式具有相似的特征：α发射迅速减少。然而，在高磁场（约4 T）和低密度下的h模式下，JT-60U没有观察到明显的跃迁，尽管边缘输运势垒仍然改善了约束。在这两个托卡马克中也研究了碰撞和输运势垒的宽度，并与Shaing的理论（1989）进行了比较。在JT-60U上演示了h跃迁对高pp模式放电的改善。由于这一改进，实现了核聚变三重积的记录值（1.1*1021 m-3 s keV）。通过控制边缘局域模式（elm）的重复率，在JT-60U上也实现了h因子约为1.8的准稳态h模工作。在JFT-2M中，利用螺旋磁场摄动的新方法成功地诱导了ELM的活动，从而获得了稳定的h模式。
The recent experimental results on H-mode in JT-60U and JFT-2M are reported. The enhanced confinement mode with the edge transport barrier ( H-mode) in JT-60U is characterized by the high edge ion temperature. The confinement improvement is well correlated with the edge ion temperature. The H-mode at low magnetic field ( approximately 2 T) in JT-60U has similar features to the H-mode in JFT-2M: rapid reduction of Dalpha emission. However, in the H-mode at high magnetic field ( approximately 4 T) and at low density, no clear transition is observed in JT-60U, although the confinement is still improved with the edge transport barrier. Collisionality and the width of the transport barrier are also investigated in both tokamaks, and are compared with Shaing's theory (1989). Improvement of the high-pp mode discharge with the H-transition was demonstrated in JT-60U. Owing to this improvement, the record value of the fusion triple product (1.1*1021 m-3 s keV) has been achieved. Quasi-steady H-mode operation with H-factor of approximately 1.8 has been also demonstrated in JT-60U by controlling the repetition rate of edge localized modes (ELMs). In JFT-2M, ELM activity has been successfully induced by a new and active method using helical magnetic field perturbation, and as a result, a steady H-mode has been achieved.
Ninomiya, H.：“雄性 KK-Ay 小鼠的梗阻性尿路病和肾积水”J.Vet.Med.Sci.6(1)。
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