| EAST上基于端口密度测量的低杂波耦合研究 |
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| 引用本文： | 张 磊,丁伯江,吴则革,马文东,刘 亮,朱文华,刘甫坤,单家方.EAST上基于端口密度测量的低杂波耦合研究[J].核聚变与等离子体物理,2013,33(3):251-256. |
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| 作者姓名： | 张 磊 丁伯江 吴则革 马文东 刘 亮 朱文华 刘甫坤 单家方 |
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| 作者单位： | (中国科学院等离子体物理研究所，合肥 230031) |
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| 基金项目： | 国家磁约束核聚变能研究专项(2010GB105004)；国家自然科学基金资助项目(11175206，10928509，10875149) |
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| 摘 要： | 介绍了一套安装在EAST装置低杂波天线端口上方，用来测量端口附近电子密度的Langmuir三探针系统及其初步实验结果。此探针系统由探针、测量电路、数据采集以及数据处理四部分构成。实验结果表明：在低杂波天线端口充气的条件下，低杂波注入后端口密度会有明显的增加。端口密度与反射系数的关系与理论趋势一致，EAST上低杂波耦合的最佳密度出现在4~5×1017m-3。
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| 关 键 词： | 低杂波 探针 端口密度 EAST装置 |
| 收稿时间： | 2012-11-15 |
Wave-plasma coupling by measuring LH grill density in EAST |
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| ZHANG Lei,DING Bo-jiang,WU Ze-ge,MA Wen-dong,LIU Liang,ZHU Wen-hua,LIU Fu-kun,SHAN Jia-fang.Wave-plasma coupling by measuring LH grill density in EAST[J].Nuclear Fusion and Plasma Physics,2013,33(3):251-256. |
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| Authors: | ZHANG Lei DING Bo-jiang WU Ze-ge MA Wen-dong LIU Liang ZHU Wen-hua LIU Fu-kun SHAN Jia-fang |
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| Institution: | (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031) |
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| Abstract: | A triple Langmuir probe was installed at the top of the lower hybrid (LH) antenna in the experimental advanced superconducting tokamak (EAST). The probe system consists of a triple probe, a measurement circuit, data acquisition and data processing. The preliminary results show that injection of LH power increases the density in front of the LH grill. The relationship between grill densities and reflection coefficients (RCs) agrees with the theoretical prediction. The optimum density for LH coupling in EAST was measured, being in range of (4~5)×1017m-3. |
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