| 用磁探针反演磁岛二维结构的方法及其在HL-2A装置上的应用 |
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| 引用本文： | 孙腾飞,刘仪,季小全,徐媛,冯北滨. 用磁探针反演磁岛二维结构的方法及其在HL-2A装置上的应用[J]. 核聚变与等离子体物理, 2011, 31(3): 200-206 |
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| 作者姓名： | 孙腾飞 刘仪 季小全 徐媛 冯北滨 |
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| 作者单位： | (核工业西南物理研究院，成都 610041) |
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| 基金项目： | 国家自然科学基金资助项目(10935004) |
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| 摘 要： | 介绍了HL-2A装置中利用磁探针数据反演磁岛极向二维结构的新方法，以及在反演基础上建立的撕裂模动态分析方法。在实验中通过磁探针测量确定作为扰动磁场来源的扰动电流。将扰动磁通与由EFIT重建的平衡磁通叠加反演出磁岛的结构，并给出磁岛的宽度。然后，按时间顺序建构二维结构图并依次记录，之后依次展现图像就可以对磁岛进行动态分析。应用此方法进行撕裂模分析，得出了磁岛旋转与电子抗磁漂移方向相同，验证了磁岛宽度与扰动场的关系及ECRH对磁岛的抑制作用。这显示了磁探针反演磁岛结构方法的直观性，对观察并控制MHD不稳定性非常有利。
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| 关 键 词： | 磁探针 MHD不稳定性 磁岛 磁岛旋转 电子回旋共振加热 |
| 收稿时间： | 2010-12-10 |
The method of inversion of magnetic island two-dimensional structure by magnetic probes and its application on HL-2A tokamak |
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| SUN Teng-fei,LIU Yi,JI Xiao-quan,XU Yuan,FENG Bei-bin. The method of inversion of magnetic island two-dimensional structure by magnetic probes and its application on HL-2A tokamak[J]. Nuclear Fusion and Plasma Physics, 2011, 31(3): 200-206 |
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| Authors: | SUN Teng-fei LIU Yi JI Xiao-quan XU Yuan FENG Bei-bin |
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| Affiliation: | (Southwestern Institute of Physics, Chengdu 610041) |
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| Abstract: | The new method that reconstructs the polar two-dimensional structure of the magnetic island using magnetic pickup coils data is introduced on HL-2A tokamak and dynamic analysis method that set up based on it for tearing mode is also introduced.In this experiment,the perturbation current which is the source of the perturbation magnetic field can be determined using the data measured by magnetic probes.Superimposing the perturbation flux and equilibrium flux reconnected by EFIT,the structure and the width of ... |
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| Keywords: | Magnetic pickup coils MHD instability Magnetic island Magnetic island rotating Electron cyclotron resonance heating |
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