宽带高幅驱动静电探针与湍流扰动的传播途径

ELECTROSTATIC PROBES DRIVEN BY BROAD BANDHIGH POWER AND PROPAGATION OF THE TURBULENT PERTURBATION

在KT 5C装置上用高输出能力的宽频带功率源驱动静电探针调制等离子体湍流振动,研究了等离子体边界湍流扰动的传播特性。在实验中用静电探针和磁探针探测到该功率源驱动的扰动沿磁力线传播,得出湍流扰动既可通过静电涨落形式传播,又可通过电磁涨落途径传播。

A high dynamic output,broadband power source for driving electrostatic probes in the investigation on propagation of turbulent perturbation has been built and used successfully in experiments on the KT5C tokamak.The details of the experiment setup as well as some preliminary results are presented.Detections both from the small size magnetic probes and electrostatic probes indicate that the modified perturbation excited by the power source may propagate electrostatically,and electromgnagnetically as well.