Generalized Physics Mechanisms of Plasma Confinement with Radially Sheared Electric Field Formation by High Power ECH and Verification of Newly Developed Plasma Stabilization Method

1.在离子温度为几keV的热离子模式下，离子禁闭势高(φ_c)在几个keV的离子温度下取得了四倍的进展。2.势能的提高导致了径向剪切电场对抑制湍流和降低横向损耗的显著作用。3.随着密度的增加，φ_c的微弱下降具有较好的相关性，范围为~10^&lt；19&gt；-3&gt；-3&gt；-1。首次在势垒镜中利用离轴ECH产生了横向能量输运势垒，形成了具有高能电子流经整个器件的圆柱层。这导致抑制了层附近的间歇性湍流涡旋结构，并导致电子温度和离子温度升高，层周围的电子温度和离子温度具有局部凸起的双极势Φ_c。径向输运势垒的解释是，在Φ_c峰附近形成了一个强的E_r剪切或峰值涡度W，E_r×B剪切流动的方向逆转，以抑制湍流。5.在标准串联镜操作中，初步的中心ECH(170kW，20ms)使T_lt；EO&GT；从70 eV与T_lt；I⊥O&GT一起提高；对于τ_c(=1.4kV)俘获离子，φ_c=1.4kV，T_&lt；I//O&gt；从0.5keV到1.2keV。用240kW的Plug ECH和90kW的ICH(η_&lt；ICH&gt；〜0.3；nl_c=4.5×10^&lt；17&gt；m^&lt；-2&gt；).观察到τ_c囚禁离子的轴上粒子与能量的限制比τ_c为1.7(与Pastukhov理论一致)，对于中心镜面囚禁离子的φ_c囚禁离子为2.4

1.Four-time progress in ion-confining potential height (φ_c) through these years is achieved in the hot-ion mode with an ion temperature of several keV having the favorably increasing scaling of φ_c with plug electron-cyclotron heating (ECH) powers.2.The advance in the potential formation leads to a finding of remarkable effects of radially sheared electric fields on turbulence suppression and transverse-loss reduction.3.A preferable dependence of a weak decrease in φ_c with increasing density ranging to 〜10^<19> m^<-3> along with the recovery of φ_c with increasing plug ECH powers is obtained.4.A transverse energy-transport barrier is produced by off-axis ECH in a barrier mirror for the first time, with the formation of a cylindrical layer having energetic electrons flowing through the whole device. This leads to suppress intermittent turbulent vortex-like structures near the layer, and results in electron temperature and ion temperature rises surrounded by the layer having a localized bumped ambipolar potential Φ_c. The radial transport barrier is explained by the formation of a strong E_r shear or peaked vorticity W with the direction reversal of E_r×B sheared flow near the Φ_c peak for the turbulence suppression.5.Preliminary central ECH (170kW,20ms) in a standard tandem-mirror operation raises T_<eO> from 70 to 300 eV together with T_<i⊥O> from 4.5 to 6.1 keV, and T_<i//O> from 0.5 to 1.2 keV with τ_<pO>=95 ms for φ_c(=1.4 kV) trapped ions. The on-axis particle to energy confining ratio of τ_<pO>/τ_<EO> is observed to be 1.7 for φ_c trapped ions (consistent with Pastukhov's theory) and 2.4 for central mirror-trapped ions with 240-kW plug ECH and 90-kW ICH (η_<ICH>〜0.3;nl_c=4.5×10^<17>m^<-2>).