在直线磁化等离子体装置中通向等离子体湍流的过程中，对轴向速度、速度剪切和平行离子温度分布进行激光诱导荧光测量。

Laser induced fluorescence measurements of axial velocity, velocity shear, and parallel ion temperature profiles during the route to plasma turbulence in a linear magnetized plasma device.

作者信息

Chakraborty Thakur S, Adriany K, Gosselin J J, McKee J, Scime E E, Sears S H, Tynan G R

机构信息

Center for Energy Research, University of California at San Diego, San Diego, California 92093-0417, USA.

Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA.

出版信息

Rev Sci Instrum. 2016 Nov;87(11):11E513. doi: 10.1063/1.4959275.

DOI:10.1063/1.4959275

PMID:27910698

Abstract

We report experimental measurements of the axial plasma flow and the parallel ion temperature in a magnetized linear plasma device. We used laser induced fluorescence to measure Doppler resolved ion velocity distribution functions in argon plasma to obtain spatially resolved axial velocities and parallel ion temperatures. We also show changes in the parallel velocity profiles during the transition from resistive drift wave dominated plasma to a state of weak turbulence driven by multiple plasma instabilities.

摘要

我们报告了在磁化线性等离子体装置中轴向等离子体流和平行离子温度的实验测量结果。我们使用激光诱导荧光来测量氩等离子体中多普勒分辨的离子速度分布函数，以获得空间分辨的轴向速度和平行离子温度。我们还展示了从电阻漂移波主导的等离子体向由多种等离子体不稳定性驱动的弱湍流状态转变过程中平行速度分布的变化。