快速真空紫外光谱诊断在EAST实验的初步应用

doi:10.16568/j.0254-6086.202102003

核聚变与等离子体物理 ›› 2021, Vol. 41 ›› Issue (2): 110-117.DOI: 10.16568/j.0254-6086.202102003

快速真空紫外光谱诊断在EAST实验的初步应用

何梁，张洪明，曹锦佳，沈永才，李颖颖，符佳，张凌，戴舒宇，王福地，胡睿佶，刘兵，张晓龙，许棕，宾斌，杨进，王勋禺，吕波，龚学余

(1. 南华大学核科学与技术学院，衡阳 421001；2. 中国科学院等离子体物理研究所，合肥 230031； 3. 安庆师范大学物理与电气工程学院，安庆 246133；4.大连理工大学三束材料改性教育部重点实验室，大连 116024； 5. 中国科学技术大学工程与应用物理系合肥 230026；6. 西南交通大学物理科学与技术学院聚变科学研究所，成都 610031； 7. 深圳大学新能源研究中心，深圳 518061）

收稿日期:2019-06-07 修回日期:2020-06-14 出版日期:2021-06-15 发布日期:2021-06-24
作者简介:何梁(1994-)，男，四川绵阳人，硕士研究生，主要从事等离子体物理研究。
基金资助:
国家磁约束核聚变能发展研究专项(2017YFE0301300, 2018YFE0301100)；聚变堆主机关键系统综合研究设施(2018-000052-73-01-001228)；国家自然科学基金(11805231)；安徽省自然科学基金(1808085QA14, 1908085J01)；中国科学院等离子体物理研究所科学基金(DSJJ-202002)；湖南省自然科学基金(2017JJ3268)；湖南省教育厅基金(17C1352)；湖南省核聚变国际科技创新合作基地(2018WK4009)

Preliminary experiment of fast vacuum ultraviolet spectroscopic diagnostic system on EAST

HE Liang 1, 2, ZHANG Hong-ming2, CAO Jin-jia1, SHEN Yong-cai3, LI Ying-ying2, FU Jia2, ZHANG Ling2, DAI Shu-yu4, WANG Fu-di2, HU Rui-ji2, 5, LIU Bing6, ZHANG Xiao-long7, XU Zong7, BIN Bin1, 2, YANG Jin1, 2, WANG Xun-yu1, 2, LÜ Bo2, GONG Xue-yu1

(1. School of Nuclear Science and Technology, University of South China, Hengyang 421001;

2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

3. School of Physics and Electrical Engineering, Anqing Normal University, Anqing 246133;

4. Key Laboratory of Materials Modification by Laser; Ion and Electron (Ministry of Education),

Dalian University of technology, Dalian 116024;

5. Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026;

6. School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031;

7. Advanced Energy Research Center, Shenzhen University, Shenzhen 518061)

Received:2019-06-07 Revised:2020-06-14 Online:2021-06-15 Published:2021-06-24

摘要/Abstract

摘要： 为了在EAST装置上开展高参数放电条件下边界杂质辐射的实验研究，发展了真空紫外(VUV)光谱诊断系统。该系统采用了焦距为200mm的Seya-Namioka型VUV光谱仪，并配备了600g·mm^-1凹面全息光栅，所能观测的波长范围为50~700nm，覆盖真空紫外、近紫外和可见光波段。系统在垂直方向的观测范围为Z=-350~350mm。利用该系统开展了EAST边界杂质谱线的实验研究。通过分析CⅣ(154.8nm)杂质和FeⅡ(235nm)的谱线强度的时间演化行为，验证了该系统谱线强度测量的准确性与可靠性。通过分析CⅠ(365.2nm)杂质辐射强度在加热功率调制下的时间演化行为，验证了该系统研究较短时间尺度的杂质辐射行为的可行性。

关键词: 等离子体诊断, 真空紫外光谱诊断系统, 杂质辐射

Abstract: A vacuum ultraviolet (VUV) spectroscopic diagnostic system has been developed on EAST to measure the edge impurity radiation in high-parameter discharges. One Seya-Namioka spectrometer with focus length of 200mm is used for the spectroscopy. The spectrometer is equipped with a holographic concave grating with groove density of 600g•mm^-1. The observed wave length range is from 50nm to 700nm, covering the VUV, near ultraviolet and visible ranges. The minimum sampling time can be set as 5ms. The observed vertical range is from Z=-350mm to 350mm. The present spectroscopy has been used to measure the spectra from edge impurity of EAST plasma. Time evolution of CⅣ(154.8nm) and FeⅡ(235nm)have been analyzed to verify the system capability. The time evolution of CⅠ(365.2nm) has also been studied for modulated NBI discharge to verify system ability to study impurity behaviors in relatively short time scale.

Key words: Plasma diagnostic, VUV spectroscopy, Impurity radiation

中图分类号:

O536
TL65+1

何梁，张洪明，曹锦佳，沈永才，李颖颖，符佳，张凌，戴舒宇，王福地，胡睿佶，刘兵，张晓龙，许棕，宾斌，杨进，王勋禺，吕波，龚学余 . 快速真空紫外光谱诊断在EAST实验的初步应用[J]. 核聚变与等离子体物理, 2021, 41(2): 110-117.

HE Liang, ZHANG Hong-ming, CAO Jin-jia, SHEN Yong-cai, LI Ying-ying, FU Jia, ZHANG Ling, DAI Shu-yu, WANG Fu-di, HU Rui-ji, LIU Bing, ZHANG Xiao-long, XU Zong, BIN Bin, YANG Jin, Gong Xue-yu . Preliminary experiment of fast vacuum ultraviolet spectroscopic diagnostic system on EAST[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2021, 41(2): 110-117.

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快速真空紫外光谱诊断在EAST实验的初步应用

Preliminary experiment of fast vacuum ultraviolet spectroscopic diagnostic system on EAST

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