HL-2M 真空紫外光谱初始诊断系统研制

doi:10.16568/j.0254-6086.2021s2018

核聚变与等离子体物理 ›› 2021, Vol. 41 ›› Issue (s2): 527-532.DOI: 10.16568/j.0254-6086.2021s2018

HL-2M 真空紫外光谱初始诊断系统研制

张凯，郑典麟，董春凤，孙平，冯雷，石中兵

(核工业西南物理研究院，成都 610041)

收稿日期:2021-05-14 修回日期:2021-07-30 出版日期:2021-11-15 发布日期:2022-01-10
作者简介:张凯(1983-)，男，湖南郴州人，博士研究生，从事等离子光谱诊断和杂质输运研究。
基金资助:
国家重点研发专项(2017YFE0301306)；国家磁约束聚变能研究专项(2014GB108003)

Development of the preliminary vacuum ultraviolet spectroscopy on HL-2M tokamak

ZHANG Kai, ZHENG Dian-lin, DONG Chun-feng, SUN Ping, FENG Lei, SHI Zhong-bing

(Southwestern Institute of Physics, Chengdu 610041)

Received:2021-05-14 Revised:2021-07-30 Online:2021-11-15 Published:2022-01-10

摘要/Abstract

摘要： 基于 Seya-Namioka 结构 200mm 焦距可换光栅，研制了 HL-2M 真空紫外(VUV)光谱诊断光谱仪。该
系统在 300~3000Å 的真空紫外光谱范围具有较高的探测效率，时间分辨优于 1µs。经过结构设计、光谱标定和安
装调试，单通道 VUV 光谱仪已成功安装在 HL-2M 装置中平面窗口。在 HL-2M 装置初始放电实验中，利用该系
统测量到 C、O、N 等杂质的多条特征谱线，展现出优秀的信噪比和高灵敏度。

关键词: 真空紫外光谱, 杂质光谱, 通道电子倍增管, 空心阴极灯

Abstract: HL-2M vacuum ultraviolet (VUV) spectral diagnostic system is developed based a combination of
multiple Seya-Namioka spectrometers, each with an exchangeable grating. Due to an optimization in gratings, the
wavelength coverage of the whole spectral system is 300Å to 3000Å with temporal resolution better than 1µs.
After structural design and fabrication, spectral calibration and commissioning, a single channel VUV
spectrometer was successfully set up in HL-2M tokamak, viewing horizontally from a midplane port. Spectral
lines of impurity species (C, O, N) were observed in HL-2M first plasma discharges by the spectrometer, which
showed excellent signal-to-noise ratio and high sensitivity.

Key words: VUV, Impurity spectra, CEM, Hollow cathode light

中图分类号:

O536

张凯, 郑典麟, 董春凤, 孙平, 冯雷, 石中兵. HL-2M 真空紫外光谱初始诊断系统研制[J]. 核聚变与等离子体物理, 2021, 41(s2): 527-532.

ZHANG Kai, ZHENG Dian-lin, DONG Chun-feng, SUN Ping, FENG Lei, SHI Zhong-bing . Development of the preliminary vacuum ultraviolet spectroscopy on HL-2M tokamak[J]. Nuclear Fusion and Plasma Physics, 2021, 41(s2): 527-532.

参考文献

[1] Isler R C. A review of charge-exchange spectroscopy and applications to fusion plasmas [J]. Phys Scr., 1987, 35: 650.
[2] Cui Z Y, Morita S, Fu B Z, et al. Space-resolved vacuum ultraviolet spectrometer system for edge impurity and
temperature profile measurement in HL-2A [J]. Rev. Sci.Instrum., 2010, 81(4): 43503.
[3] Cui Z Y, Sun P, Dong J F, et al. First measurement of VUV spectroscopy using 1 m normal incidence
spectrometer on HL-2A [J]. Plasma Sci. Technol., 2008, 10: 298.
[4] Zhou H Y, Cui Z Y, Morita S, et al. Spectral analysis in EUV range for study of core impurity behavior in HL-2A [J]. Plasma Sci. Technol., 2014, 16: 89.
[5] McKee G R, Fonck R J, Fenzi C, et al. A Lyman-alpha-based (VUV) plasma density fluctuation diagnostic design [J]. Rev. Sci. Instrum., 2001, 72: 992.
[6] McKee G R, Burrell K H, Fonck R J, et al. Impurity-Induced suppression of core turbulence and transport in the DIII-D tokamak [J]. Phys. Rev. Lett., 2000, 84: 1922.
[7] Sertoli M, Dux R, Pütterich T, et al. Modification of impurity transport in the presence of saturated (m,n) =
(1,1) MHD activity at ASDEX Upgrade [J]. Plasma Phys. Contr. Fusion, 2015, 57: 075004.
[8] Sertoli M, Odstrcil T, Angioni C, et al. Interplay between central ECRH and saturated (m,n)=(1,1) MHD activity in
mitigating tungsten accumulation at ASDEX Upgrade [J]. Nucl. Fusion, 2015, 55: 113029.
[9] Cui Z Y, Zhang K, Morita S, et al. Study of impurity transport in HL-2A ECRH L-mode plasmas with radially
different ECRH power depositions [J]. Nucl. Fusion, 2018, 58: 056012.
[10] Li D, Qi L, Liu Y Q, et al. Effects of temperature gradient driven turbulence and core MHD instability on particle
transport in HL-2A L-mode plasmas [J]. Nucl. Fusion, 2020, 60: 076005.
[11] Angioni C, Peeters A G. Direction of impurity pinch and auxiliary heating in tokamak plasmas [J]. Phys. Rev. Lett.,
2006, 96: 95003.
[12] Zhong W L, Shen Y, Zou X L, et al. Observation of double impurity critical gradients for electromagnetic turbulence excitation in tokamak plasmas [J]. Phys. Rev. Lett., 2016, 117: 045001.
[13] Zheng D L, Zhang K, Cui Z Y, et al. High-speed VUV spectroscopy for edge impurity line emission measurements in HL-2A tokamak [J]. Plasma Sci. Technol., 2018, 20: 105103.
[14] Zhang K, Zheng D L, Sun P, et al. Development of high-speed vacuum ultraviolet spectroscopy using a modified Seya-Namioka monochromator and channel electron multiplier detector in the HL-2A tokamak [J]. Rev. Sci. Instrum., 2018, 89(10): D134.
[15] Paresce F, Kumar S, Bowyer C S. Continuous discharge line source for the extreme ultraviolet [J]. Appl. Opt.,
1971, 10: 1904.

HL-2M 真空紫外光谱初始诊断系统研制

Development of the preliminary vacuum ultraviolet spectroscopy on HL-2M tokamak

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