Measurements of the electron temperature by the Thomson scattering system on the Hanbit magnetic mirror device
Measurements of the electron temperature by the Thomson scattering system on the Hanbit magnetic mirror device
复制标题
Hanbit磁镜装置上汤姆逊散射系统测量电子温度
DOI：
10.1063/1.1321749
复制
发表时间：
2001
影响因子：
1.6
通讯作者：
Y. Won
中科院分区：
文献类型：
--
作者：
H. Lee;S. G. Lee;B. C. Kim;J. Hong;W. C. Kim;K. Choh;J. Choi;J. Yang;H. Na;C. J. Doh;S. M. Hwang;M. Kwon;Y. Won
在Hanbit磁镜装置上安装了汤姆逊散射系统，测量了中心池中等离子体的电子温度和密度。该配置基于标准的90°散射方案。光学系统由Q开关Nd：YAG激光器、输入光学器件、收集光学器件、摄谱仪光学器件、探测器和数据采集系统组成。虽然激光束的路径是约50米长，背景辐射不低，电子温度测量已在一个单一的点上拍摄的基础上，其中杂散光被大大抑制通过使用束流收集器，一个观察转储，和挡板。在用200 kW-rf功率的ICRF进行等离子体产生和加热的实验中，用缝隙天线测得的电子温度约为50-70 eV。安装的系统和实验结果的描述。
A Thomson scattering system on the Hanbit magnetic mirror device has been installed to measure the electron temperature and density of the plasma in the central cell. The configuration is based on a standard 90° scattering scheme. The optical system consists of a Q-switched Nd:YAG laser, input optics, collection optics, spectrograph optics, detectors, and a data acquisition system. Although the laser beam path is about 50 m long and the background emissions are not low, the electron temperature measurements have been made at a single point on a shot-by-shot basis, in which the stray light was considerably suppressed by using a beam dump, a viewing dump, and baffles. The measured electron temperature is about 50–70 eV in experiments for plasma production and heating by ICRF of 200-kW-rf power using a slot antenna. A description of the installed system and the experimental results are presented.