Stable anisotropic plasma confinement in magnetic configurations with convex–concave field lines
作者: M.M. Tsventoukh
作者单位: 1Lebedev Physical Institute, Russian Academy of Sciences, Moscow 119991, Russia
刊名: Nuclear Fusion, 2014, Vol.54 (2)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/54/2/022004
原始语种摘要: It is shown that a combination of the convex and the concave part of a field line provides a strong stabilizing action against convective (flute-interchange) plasma instability (Tsventoukh 2011 Nucl. Fusion 51 112002 ). This results in internal peaking of the stable plasma pressure profile that is calculated from the collisionless kinetic stability criterion for any magnetic confinement system with combination of mirrors and cusps. Connection of the convex and concave field line parts results in a reduction of the space charge that drives the unstable E × B motion, as there is an opposite direction of the particle drift in a non-uniform field at convex and concave field lines. The pressure peaking arises at the minimum of the second adiabatic invariant J that takes place at the ‘middle’...
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  • concave 凹的
  • convex 凸起的
  • confinement 封闭
  • plasma 深绿玉髓
  • stable 稳定的
  • anisotropic 非均质的
  • peaking 引入尖脉冲
  • field 
  • lines 线型
  • calculated 计算的