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毛剑珊 P.Phillips 罗家融 徐宇鸿 赵君煜 张先梅 万宝年 张守银 揭银先 吴振伟 胡立群 刘胜霞 石跃江 李建刚 HT-M&HT- group 《等离子体科学和技术》2003,5(1):1641-1650
The Experiments of Modulated Toroidal Current were done on the HT-6M tokamak and HT-7 superconducting tokamak. The toroidal current was modulated by programming the Ohmic heating field. Modulation of the plasma current has been used successfully to suppress MHD activity in discharges near the density limit where large MHD m = 2 tearing modes were suppressed by sufficiently large plasma current oscillations. The improved Ohmic confinement phase was observed during modulating toroidal current (MTC) on the Hefei Tokamak-6M (HT-6M) and Hefei superconducting Tokamak-7 (HT-7). A toroidal frequency-modulated current, induced by a modulated loop voltage, was added on the plasma equilibrium current. The ratio of A.C. amplitude of plasma current to the main plasma current △Ip/Ip is about 12% ~ 30%. The different formats of the frequency-modulated toroidal current were compared. 相似文献
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1. IntroductionThe measurement of H./D. emission, which canafford much information of the plasma, is one of the-,primary diagnostics in tokamak experiments. If theintensity Of H./D. emission along different chords ina poloidal plane are measured, with the ABEL inver-sion, one can get the H./D. emissivity, thus the spatial distribution of neutral H/D and its penetrationor ionization length. With the absolute brightness ofH./D. emission and assuming some symmetries inspatial distribution, … 相似文献
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随着“新时代高教40条”的实施,各高校愈加重视实验教学在人才培养中的作用。“六卓越一拔尖”计划2.0要求高校与时俱进地优化实验教学体系,满足时代发展对高素质专门人才培养提出的新要求。文章以学生为中心,以能力培养为主线,遵循OBE理念“预期成果—流程设计—产出评估”的内在逻辑,在总结当前实验教学体系存在的问题的基础上,按照“预期目标—措施制定—成果检验”的顺序,着重阐述融合前瞻性视野与现代信息技术的实验教学体系的优化,以落实高校立德树人的根本任务。 相似文献
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1.IntroductionAlthoughmosthotplasmasarealmostcompletelyionized,thereare,nevertheless,neutra1atomsthatarecontinuallybeingformedintheplasma.Theseneutralsarisefromtheatomsandmoleculesbeingreleasedfromthewallofvacuumvessel.Recombi-nationofelectronsandionsintheplasmacanalsoformneutrals,buttheyareoflessimportantexceptatveryhighplasmadensitiesandatthecenteroflargeplasma.Someneutralssufferfromthereso-nantchargeexchangewiththeprimaryionandbe-comethefastneutrals.Thehigh-energyatomcanescapefromtheplasma… 相似文献
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我是贵州省黔东南苗族侗族自治州水文水资源局湾水水文站的职工。湾水水文站地处沅水水系的一条重要支流清水江上,任务是向施洞、剑河、锦屏、凯里、贵阳、武汉和北京等地报汛。我全家都是搞水文测验的。父亲搞水文,我生在水文站,长在水文站,嫁了个丈夫也是水文工作者。我高中毕业后到水文系统,1994年调湾水水文站工作,和父亲一样,在小站默默地工作,默默地生活。由于工作需要, 相似文献
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In this paper a simple code has been developed to analyze power balance and qualitatively evaluate current profiles for discharges with lower hybrid current drive (LHCD) and ion Bernstein wave (IBW) heating in the HT-7 tokamak. Electron and ion thermal diffusivity, profiles of the bootstrap current density and total plasma current density can be estimated by this code using the experimental data. This code offers an easy and reasonable means to understand plasma transport in HT-7. 相似文献
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