2-D soft x-ray arrays in the EAST
2-D soft x-ray arrays in the EAST
复制标题
EAST 的二维软 X 射线阵列
DOI：
10.1063/1.4953837
复制
发表时间：
2016-06-01
影响因子：
1.6
通讯作者：
Zhao, Jinlong
中科院分区：
文献类型：
--
作者：
Chen, Kaiyun;Xu, Liqing;Zhao, Jinlong
在EAST上安装了一台高时空分辨率的软X射线成像诊断装置，用于研究磁流体动力学活动和堆芯高Z杂质输运。多达122条视线从三个方向（两个上下对称的水平阵列和一个垂直阵列）观察极向等离子体，这使得诊断能够在各种条件下提供详细的断层重建。采用基于通量坐标的Fourier-Bessel方法进行二维SXR断层重建。给出了EAST中SXR诊断测量的几个事件的例子，即碰撞模式、边缘局域模的周期性爆发和高Z本征杂质的输运。出版社：AIP Publishing
A high spatial and temporal resolution soft x-ray (SXR) imaging diagnostic has been installed in EAST for the study of magnetohydrodynamics activities and core high-Z impurity transport. Up to 122 lines of sight view the poloidal plasma from three directions (two up-down symmetrical horizontal arrays and one vertical array), which renders the diagnostic able to provide detailed tomographic reconstructions under various conditions. Fourier-Bessel method based on flux coordinates was employed for 2-D SXR tomographic reconstruction. Examples of several events measured by SXR diagnostic in EAST are shown, namely the crash patterns of sawtooth, periodical burst of edge localized modes, and the transport of high-Z intrinsic impurities. Published by AIP Publishing.