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Electrostatic and magnetic measurements of turbulence and transport in Extrap T2

机译：在Extrap T2中进行湍流和输运的静电和磁测量

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Langmuir probe and magnetic pick-up coil measurements are used to study edge turbulence in the Extrap T2 reversed field pinch. Magnetic fluctuations resonant outside the toroidal field reversal surface are observed where previously only fluctuations in the spectra of potential and electron density and temperature have been measured. Results are presented which imply that these fluctuations are coupled to and also correlated to the internally resonant tearing mode fluctuations. Evidence of coupling between low-frequency (<100 kHz) and high-frequency fluctuations is also presented. The normalized floating potential fluctuations are seen to increase with the edge electron temperature. This causes an increase of the potential and density fluctuation driven transport with the temperature which is faster than linear. These results, in combination, are consistent with a picture where internally resonant fluctuations couple to edge fluctuations through radial heat conduction from the stochastic core to the edge. [References: 14]
机译：Langmuir探针和电磁拾波线圈测量用于研究Extrap T2反向磁场收缩中的边缘湍流。观察到在环形场反转表面之外共振的磁波动，其中先前仅测量了电势，电子密度和温度谱中的波动。结果表明，这些波动与内部共振撕裂模式波动相关，并且也与之相关。还提供了低频（<100 kHz）和高频波动之间耦合的证据。可以看到归一化的浮动电势波动随着边缘电子温度的升高而增加。这导致电势和密度波动驱动的传输速度比线性速度快。这些结果相结合，与以下图像一致：内部共振波动通过从随机磁芯到边缘的径向热传导耦合到边缘波动。 [参考：14]

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