A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment.

A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment.
复制标题

DOI：
10.1063/1.3039415
复制
发表时间：
2008-12
期刊：
The Review of scientific instruments
影响因子：
--
通讯作者：
D. Smith;E. Mazzucato;W. Lee;H. Park;C. Domier;N. Luhmann
D. Smith;E. Mazzucato;W. Lee;H. Park;C. Domier;N. Luhmann
中科院分区：
其他
文献类型：
--
作者：
D. Smith;E. Mazzucato;W. Lee;H. Park;C. Domier;N. Luhmann

文献摘要

被引文献

相似文献

在国家球面环面实验(NSTX)上安装了一个集体散射系统，用于测量NSTX等离子体中的电子回旋涨落。该系统测量的波动k(垂直)小于0.6，k(垂直)小于20厘米(-1)。同时测量多达五个不同的波数，NSTX等离子体的大环曲率提供了增强的空间局部化。可操纵的光学器件可以将整个等离子体中的散射体从磁轴定位到外侧边缘。初步测量表明，电子陀螺仪上存在丰富的湍流动力学。该系统将是研究NSTX等离子体中电子温度梯度湍流和电子热输运之间关系的有价值的工具。
A collective scattering system has been installed on the National Spherical Torus Experiment (NSTX) to measure electron gyroscale fluctuations in NSTX plasmas. The system measures fluctuations with k( perpendicular)rho(e) less, similar0.6 and k( perpendicular) less, similar20 cm(-1). Up to five distinct wavenumbers are measured simultaneously, and the large toroidal curvature of NSTX plasmas provides enhanced spatial localization. Steerable optics can position the scattering volume throughout the plasma from the magnetic axis to the outboard edge. Initial measurements indicate rich turbulent dynamics on the electron gyroscale. The system will be a valuable tool for investigating the connection between electron temperature gradient turbulence and electron thermal transport in NSTX plasmas.