| HT-7托卡马克大功率低混杂波电流驱动的实验研究 |
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| 引用本文： | 徐强,高翔,单家方,胡立群,赵君煜.HT-7托卡马克大功率低混杂波电流驱动的实验研究[J].物理学报,2009,58(12):8448-8453. |
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| 作者姓名： | 徐强 高翔 单家方 胡立群 赵君煜 |
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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（批准号：10475078，10675127，10675126，10675124，10605028）资助的课题. |
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| 摘 要： | 在HT-7超导托卡马克成功进行了大功率（PLHW=100—800 kW，f=2.45 GHz）低混杂波电流驱动实验.研究了不同入射功率和等离子体密度下的低混杂波电流驱动效率.获得了以平均电子密度增加、氘阿尔法（Dα）线辐射减少为特征的粒子约束改善；粒子约束时间τp增加了约1.5倍.仔细研究了能量约束时间与等离子体密度和低混杂波功率的关系.
关键词：
托卡马克
低混杂波
约束改善
电流驱动效率
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| 关 键 词： | 托卡马克 低混杂波 约束改善 电流驱动效率 |
| 收稿时间： | 2008-01-14 |
Experimental study of large power lower hybrid current drive on HT-7 tokamak |
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| Xu Qiang,Gao Xiang,Shan Jia-Fang,Hu Li-Qun,Zhao Jun-Yu.Experimental study of large power lower hybrid current drive on HT-7 tokamak[J].Acta Physica Sinica,2009,58(12):8448-8453. |
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| Authors: | Xu Qiang Gao Xiang Shan Jia-Fang Hu Li-Qun Zhao Jun-Yu |
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| Abstract: | Large power current drive of lower hybrid wave (LHW) was performed (P_(LHW) 100-800 kW at 2.45 GHz) recently in the HT-7 tokamak. The lower hybrid current drive ( LHCD) efficiency is studied for different injected powers and for different densities. Improved particle confinement is observed by application of LHCD as characterized by an increase of central line average electron density and decrease of D_α emission. The particle confinement time τ_P increased about 1.5 times compared with ohm discharge. The dependence of energy confinement time τ_E on plasma density and LHW power is experimentally studied in detail. |
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| Keywords: | tokamak low hybrid wave confinement improvement current drive efficiency |
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