J-TEXT 托卡马克相干成像光谱诊断系统设计

doi:10.16568/j.0254-6086.202503004

核聚变与等离子体物理 ›› 2025, Vol. 45 ›› Issue (3): 273-279.DOI: 10.16568/j.0254-6086.202503004

J-TEXT 托卡马克相干成像光谱诊断系统设计

聂林¹，吴骏彬^*1，龙婷¹，雷驰²，严伟²，李杨波²，张霄翼²，J-TEXT 实验团队²

(1. 核工业西南物理研究院，成都 610041；2. 华中科技大学，武汉 430074)

收稿日期:2025-04-22 修回日期:2025-06-23 出版日期:2025-09-15 发布日期:2025-09-29
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。
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。
基金资助:
国家磁约束核聚变能发展研究专项(2018YFE0309103)

The design of coherence imaging spectroscopy system on J-TEXT tokamak

NIE Lin¹, WU Jun-bin¹, LONG Ting¹, LEI Chi², YAN Wei², LI Yang-bo², ZHANG Xiao-yi², J-TEXT Experimental Team²

(1. Southwestern Institute of Physics, Chengdu 610041; 2. Huazhong University of Science and Technology, Wuhan 430074)

Received:2025-04-22 Revised:2025-06-23 Online:2025-09-15 Published:2025-09-29

摘要/Abstract

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。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。

关键词: 相干成像光谱诊断, 环向速度, J-TEXT 托卡马克

Abstract:

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 11 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.

Key words: Coherence imaging spectroscopy, Toroidal velocity, J-TEXT tokamak

中图分类号:

O536

聂林, 吴骏彬, 龙婷, 雷驰, 严伟, 李杨波, 张霄翼, J-TEXT 实验团队. J-TEXT 托卡马克相干成像光谱诊断系统设计[J]. 核聚变与等离子体物理, 2025, 45(3): 273-279.

NIE Lin, WU Jun-bin, LONG Ting, LEI Chi, YAN Wei, LI Yang-bo, ZHANG Xiao-yi, J-TEXT Experimental Team.

The design of coherence imaging spectroscopy system on J-TEXT tokamak

[J]. Nuclear Fusion and Plasma Physics, 2025, 45(3): 273-279.

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J-TEXT 托卡马克相干成像光谱诊断系统设计

The design of coherence imaging spectroscopy system on J-TEXT tokamak

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