EAST等离子体边界可见光成像系统研究  

Research on visible imaging system of plasma boundary on EAST

作　　者：陈明[1,2] 沈飊[1] Shinichiro Kado 陈大龙 张恒 郭笔豪 黄耀 蔡福瑞 肖炳甲 CHEN Ming;SHEN Biao;Shinichiro Kado;CHEN Da-long;ZHANG Heng;GUO Bi-hao;HUANG Yao;CAI Fu-rui;XIAO Bing-jia(Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026;Kyoto University,Kashiwa,Chiba 227-8568,Japan;Chongqing University of Posts and Telecommunications,Chongqing 400065)

机构地区：[1]中国科学院合肥物质科学研究院,合肥230031 [2]中国科学技术大学,合肥230026 [3]京都大学,日本京都市左京区227-8568 [4]重庆邮电大学,重庆400065

出　　处：《核聚变与等离子体物理》2024年第2期222-228,共7页Nuclear Fusion and Plasma Physics

基　　金：中国国家自然科学基金(11775262);国家重点研发计划(2018YEF0302103)。

摘　　要：设计了一套针对Hα波段的高精度折叠式光学系统用来观察放电过程中等离子体边界特征,该系统在全视场中实现了4mm的分辨率。基于图像局部特征和相机模型,发展了光学等离子体边界重建算法,在EAST上针对高场侧中平面处的等离子体控制点进行了算法验证,光学重建的控制点随时间的演化与磁平衡重建的结果吻合良好。In this paper,a set of high-precision folding optical system for Hαband is designed to observe the plasma boundary features,which achieves a resolution of 4 mm in the full field of view.Based on the local features of the image and the camera model,an optical plasma boundary reconstruction algorithm was developed and validated on EAST for plasma control points at the midplane of the high field side.The evolution of control points for optical reconstructions over time is in good agreement with the results of magnetic equilibrium reconstructions.

关 键 词：EAST装置 等离子体边界 光学成像 

分 类 号：TL659[核科学技术—核技术及应用]