H-mode plasmas at very low aspect ratio on the Pegasus Toroidal Experiment
作者: K.E. ThomeM.W. BongardJ.L. BarrG.M. BodnerM.G. BurkeR.J. FonckD.M. KrieteJ.M. PerryJ.A. ReuschD.J. Schlossberg
作者单位: 1Department of Engineering Physics, University of Wisconsin–Madison, 1500 Engineering Drive, Madison, WI 53706, USA
刊名: Nuclear Fusion, 2017, Vol.57 (2)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/57/2/022018
原始语种摘要: H-mode is obtained at in the Pegasus Toroidal Experiment via Ohmic heating, high-field-side fueling, and low edge recycling in both limited and diverted magnetic topologies. These H-mode plasmas show the formation of edge current and pressure pedestals and a doubling of the energy confinement time to . The L–H power threshold increases with density, and there is no minimum observed in the attainable density space. The power threshold is equivalent in limited and diverted plasmas, consistent with the FM3 model. However, the measured is higher than that predicted by conventional International Tokamak Physics Activity (ITPA) scalings, and increases as . Small ELMs are present at low input power , with toroidal mode number . At , they transition to large ELMs with...
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关键词翻译
关键词翻译
  • region 地域
  • pedestal 基座
  • observed 观察到的
  • exhibit 展出
  • current 
  • density 密度
  • component 成分
  • formation 建造
  • fueling 供给燃料
  • further 进一步