摘要
相干成像光谱诊断是一种采用高速相机拍摄方式对等离子体边界的杂质离子流速进行二维成像的被动光谱诊断,对研究托卡马克边界和偏滤器等离子体环向旋转、杂质离子分布有着重要的作用。J-TEXT装置成功研制并部署了一套主要基于CⅢ线(464.88 nm)的相干成像光谱诊断系统。该系统的光学视场设计为12°,主要针对J-TEXT强场侧边缘等离子体区域进行观测。在性能指标方面,系统具备2 ms的时间分辨率,同时实现了11 mm(垂直方向)空间分辨率。目前该诊断系统已完成实验测试,并成功获取了等离子体边界的关键数据,为开展边界物理研究提供了新的实验手段。
Coherent imaging spectroscopy(CIS)is a diagnostic technique that employs high-speed cameras to capture two-dimensional images of impurity ion flow velocities at the plasma boundary.It plays a significant role in studying toroidal rotation and impurity ion distribution in boundary and divertor plasmas.A coherent imaging diagnostic system based on the CIII line(464.88 nm)has been successfully developed and deployed on the J-TEXT tokamak.The system features an optical view field of 12°,specifically designed for observing the edge plasma region on the high-field side of J-TEXT tokamak.In terms of performance specifications,the system achieves a high temporal resolution of 2 ms while maintaining vertically spatial resolutions of 1l mm.The diagnostic system has completed experimental test and successfully acquired key data of the plasma boundary,providing a new experimental tool for boundary physics research.
作者
聂林
吴骏彬
龙婷
雷驰
严伟
李杨波
张霄翼
J-TEXT实验团队
NIE Lin;WU Jun-bin;LONG Ting;LEI Chi;YAN Wei;LI Yang-bo;ZHANG Xiao-yi;J-TEXT Experimental Team(Southwestern Institute of Physics,Chengdu 610041;Huazhong University of Science and Technology,Wuhan 430074)
出处
《核聚变与等离子体物理》
北大核心
2025年第3期273-279,共7页
Nuclear Fusion and Plasma Physics
基金
国家磁约束核聚变能发展研究专项(2018YFE0309103)。
作者简介
聂林(1985-),男,广西人,副研究员,硕士生导师,博士,从事等离子体诊断研发和等离子体输运物理研究。;通讯作者:吴骏彬(2000-),男,广东人,硕士,从事磁约束核聚变高温等离子体诊断研究。
