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利用四探针方法系统地研究了ＫＴ－５Ｃ托卡马克边缘等离了体的湍流性质。实验结果指出，在限制器内０．５ｃｍ处，有一自然产生的径向电场剪切层。由Ｅｒ×Ｂ引起的等离子体整体的极向旋转在剪切层外沿着离子逆磁漂移方向，而在剪切层内则是沿着电子逆磁漂移方向的。相关分析表明，在剪切层上等离子体的自相关时间最短，约６μｓ，在不同的环向位置上只有位于同一磁力线上的湍流才是高度相关的。
The turbulent properties of plasma on the edge of KT-5C tokamak were systematically investigated by the four-probe method. The experimental results show that there is a naturally occurring radial electric field shear layer within 0.5 cm of the limiter. The polar rotation of the whole plasma caused by Er × B is in the direction opposite to the ion’s anti-magnetic drift outside of the shear layer and in the direction of the electron’s inverse magnetic field within the shear layer. Correlation analysis shows that the plasma self-correlation time is the shortest, about 6μs at the shear layer, and only turbulences located on the same magnetic field line are highly correlated at different circumferential positions.