| HT-7低杂波电流驱动效率与有效电荷数及电子温度的关系 |
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| 引用本文： | 杨建华,吴振伟,许平,徐强. HT-7低杂波电流驱动效率与有效电荷数及电子温度的关系[J]. 强激光与粒子束, 2010, 22(9). DOI: 10.3788/HPLPB20102209.2067 |
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| 作者姓名： | 杨建华 吴振伟 许平 徐强 |
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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： | 国家自然科学基金项目 |
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| 摘 要： | 在HT-7超导托卡马克中进行了低杂波电流驱动的功率扫描实验,功率变化范围为100kW至700kW,频率为2.45GHz。研究了等离子体平均有效电荷数及电子温度与低杂波功率之间的关系。给出了不同功率下低杂波电流驱动效率与有效电荷数及电子温度之间的关系:HT-7装置低杂波驱动效率与电子温度成正比,与有效电荷数成反比。指出了动态杂质控制是改善低杂波电流驱动效率的关键问题。
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| 关 键 词： | 托卡马克 低杂波 电流驱动效率 电荷有效数 |
| 收稿时间： | 1900-01-01; |
Lower hybrid current drive efficiency affected by effective charge number and electron temperature in HT-7 tokamak |
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| Yang Jianhua,Wu Zhenwei,Xu Ping,Xu Qiang. Lower hybrid current drive efficiency affected by effective charge number and electron temperature in HT-7 tokamak[J]. High Power Laser and Particle Beams, 2010, 22(9). DOI: 10.3788/HPLPB20102209.2067 |
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| Authors: | Yang Jianhua Wu Zhenwei Xu Ping Xu Qiang |
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| Affiliation: | Institute of Plasma Physics, Chinese Academy of Sciences, P. O. Box 1126, Hefei 230031, China |
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| Abstract: | The lower hybrid current drive experiment has been performed on the HT-7 tokamak. The wave power varied from 100 kW to 700 kW with a frequency of 2.45 GHz. The relation between the power of lower hybrid wave and the average effective charge number and electron temperature was studied. It is shown that the current drive efficiency is proportional to the electron temperature, and inversely proportional to the effective charge number. The dynamic control of the impurity of plasma is a key to improve the current drive efficiency. |
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| Keywords: | lower hybrid wave current drive efficiency effective charge number |
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