Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST

Liang HE (何梁); Jun CHEN (陈俊); Fudi WANG (王福地); Jinjia CAO (曹锦佳); Hongming ZHANG (张洪明); Jia FU (符佳); Yingying LI (李颖颖); Yichao LI (李义超); Bin BIN (宾斌); Qingjiang YU (余青江); Shunkuan WAN (万顺宽); Jin YANG (杨进); Xunyu WANG (王勋禹); Bo LYU (吕波); Xueyu GONG (龚学余)

doi:10.1088/2058-6272/ab84ee

Plasma Science and Technology > 2020 > 22(8): 84002-084002. > DOI: 10.1088/2058-6272/ab84ee

Liang HE (何梁), Jun CHEN (陈俊), Fudi WANG (王福地), Jinjia CAO (曹锦佳), Hongming ZHANG (张洪明), Jia FU (符佳), Yingying LI (李颖颖), Yichao LI (李义超), Bin BIN (宾斌), Qingjiang YU (余青江), Shunkuan WAN (万顺宽), Jin YANG (杨进), Xunyu WANG (王勋禹), Bo LYU (吕波), Xueyu GONG (龚学余). Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST[J]. Plasma Science and Technology, 2020, 22(8): 84002-084002. DOI: 10.1088/2058-6272/ab84ee

Citation:

PDF (1052 KB)

Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST

¹ Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
² School of Nuclear Science and Technology, University of South China, Hengyang 421001, People's Republic of China
³ Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China

Funds: This work is partially supported by the National Magnetic Confinement Fusion Science Program of China (Nos. 2017YFE0301300 and 2018YFE0301100), the Key Program of Research and Development of the Hefei Science Center (No. 2017HSC- KPRD002), National Natural Science Foundation of China (Nos. 11805231 and 11705151), the ASIPP Science and Research Grant (No. DSJJ-17-03), the Anhui Provincial Natural Science Foundation (Nos. 1808085QA14 and 1908085J01), the Instrument Developing Project of the Chi- nese Academy of Sciences (No. YJKYYQ20180013), the Collaborative Innovation Program of Hefei Science Center, CAS (No. 2019HSC-CIP005), the Nature Science Foundation of Hunan Province (2017JJ3268), the Hunan Nuclear Fusion International Science and Technology Innovation Coopera- tion Base (No. 2018WK4009), and the Key Laboratory of Magnetic Confinement Nuclear Fusion Research in Hengyang (No. 2018KJ108).

More Information

Received Date: January 08, 2020
Revised Date: March 24, 2020
Accepted Date: March 26, 2020

Graphical Abstract

Abstract

Abstract

Spectral measurement of tungsten (W) impurity is essential to study impurity transport. Therefore, an X-ray crystal spectrometer (XCS) on EAST was used to measure the line spectra from highly ionized W ions. On EAST, both poloidal XCS and tangential XCS have been developed to measure the plasma temperature as well as the rotation velocity. Recently, He-like and H-like argon spectra have also been obtained using a two-crystal setup. W lines are identified in this study. Through a careful analysis, the W lines of 3.9336, 3.9321, and 3.664 Å are found to be diffracted by He-like or H-like crystals. The lines are confirmed with the NIST database. We also calculated the ion temperature with Doppler broadening of these lines. The ion temperature from the W lines is entirely consistent with that from Ar line spectra. The measurement of these W line spectra could be used to study W impurity transport in future work.
- tungsten spectra,
- X-ray crystal spectrometer,
- two-crystal

FullText(HTML)

References (25)

References

[1]	Shen Y C et al 2019 Phys. Plasmas 26 032507
[2]	Pütterich T et al 2012 Tungsten screening and impurity control in JET Proc. 24th IAEA Fusion Energy Conf. (San Diego USA) (MPG)
[3]	Casali L et al 2014 Transport analysis of high radiation and high density plasmas at ASDEX upgrade Talk presented at 78. DPG-Jahrestagung und Frühjahrstagung der Sektion AMOP 2014 (Berlin, Germany) (MPG)
[4]	Seon C R et al 2017 Rev. Sci. Instrum. 88 083511
[5]	Lipschultz B et al 2012 Nucl. Fusion 52 123002
[6]	Neu R et al 2009 Phys. Scr. 138 014038
[7]	Van Rooij G J et al 2013 J. Nucl. Mater. 438 S42
[8]	Seon C R et al 2016 Fusion Eng. Des. 109–111 656
[9]	Yao D M et al 2016 Phys. Scr. 167 014003
[10]	Shen Y C et al 2013 Fusion Eng. Des. 88 3072
[11]	Shen Y et al 2013 Nucl. Instrum. Methods Phys. Res. A 700 86
[12]	Zhang L et al 2019 Nucl. Instrum. Methods Phys. Res. A 916 169
[13]	Zhang L et al 2015 Rev. Sci. Instrum. 86 123509
[14]	Lu B et al 2012 Rev. Sci. Instrum. 83 10E130
[15]	Lyu B et al 2014 Rev. Sci. Instrum. 85 11E406
[16]	Wang F D et al 2016 Rev. Sci. Instrum. 87 11E342
[17]	Wang F D et al 2011 J. Korean Phys. Soc. 59 2734
[18]	Lyu B et al 2016 Rev. Sci. Instrum. 87 11E326
[19]	Lyu B et al 2018 Rev. Sci. Instrum. 89 10F112
[20]	Hu R J et al 2018 Rev. Sci. Instrum. 89 10F110
[21]	Yang X S et al 2018 Plasma Sci. Technol. 20 124001
[22]	Tragin N et al 1988 Phys. Scr. 37 72
[23]	Sertoli M 2010 Local effects of ECRH on argon transport at ASDEX upgrade PhD Thesis Ludwig-Maximilians—Universität München
[24]	Clementson J et al 2010 Phys. Scr. 81 015301
[25]	Kramida A et al NIST Atomic Spectra Database (version 5.7.1) Available https://doi.org/10.18434/T4W30F [Accessed: 6 March 2020]. National Institute of Standards and Technology

[1]	Tao ZHANG (张涛), Haiqing LIU (刘海庆), Guoqiang LI (李国强), Long ZENG (曾龙), Yao YANG (杨曜), Tingfeng MING (明廷凤), Xiang GAO (高翔), Hui LIAN (连辉), Kai LI (李凯), Yong LIU (刘永), Yingying LI (李颖颖), Tonghui SHI (石同辉), Xiang HAN (韩翔), the EAST team. Experimental observation of reverse- sheared Alfvén eigenmodes (RSAEs) in ELMy H-mode plasma on the EAST tokamak[J]. Plasma Science and Technology, 2018, 20(11): 115101. DOI: 10.1088/2058-6272/aac9b5
[2]	Xingquan WU (伍兴权), Guosheng XU (徐国盛), Baonian WAN (万宝年), Jens Juul RASMUSSEN, Volker NAULIN, Anders Henry NIELSEN, Liang CHEN (陈良), Ran CHEN (陈冉), Ning YAN (颜宁), Linming SHAO (邵林明). A new model of the L–H transition and H-mode power threshold[J]. Plasma Science and Technology, 2018, 20(9): 94003-094003. DOI: 10.1088/2058-6272/aabb9e
[3]	Zhen ZHENG (郑振), Nong XIANG (项农), Jiale CHEN (陈佳乐), Siye DING (丁斯晔), Hongfei DU (杜红飞), Guoqiang LI (李国强), Yifeng WANG (王一丰), Haiqing LIU (刘海庆), Yingying LI (李颖颖), Bo LYU (吕波), Qing ZANG (臧庆). Kinetic equilibrium reconstruction for the NBI-and ICRH-heated H-mode plasma on EAST tokamak[J]. Plasma Science and Technology, 2018, 20(6): 65103-065103. DOI: 10.1088/2058-6272/aab262
[4]	Wulyu ZHONG (钟武律), Xiaolan ZOU (邹晓岚), Zhongbing SHI (石中兵), Xuru DUAN (段旭如), Min XU (许敏), Zengchen YANG (杨曾辰), Peiwan SHI (施培万), Min JIANG (蒋敏), Guoliang XIAO (肖国梁), Xianming SONG (宋显明), Jiaqi DONG (董家齐), Xuantong DING (丁玄同), Yong LIU (刘永), HL-A team (HL-A团队). Dynamics of oscillatory plasma flows prior to the H-mode in the HL-2A tokamak[J]. Plasma Science and Technology, 2017, 19(7): 70501-070501. DOI: 10.1088/2058-6272/aa6538
[5]	Xianzu GONG (龚先祖), Baonian WAN (万宝年), Jiangang LI (李建刚), Jinping QIAN (钱金平), Erzhong LI (李二众), Fukun LIU (刘甫坤), Yanping ZHAO (赵燕平), Mao WANG (王茂), Handong XU (徐旵东), A M GAROFALO, Annika EKEDAH, Siye DING (丁斯晔), Juan HUANG (黄娟), Ling ZHANG (张凌), Qing ZANG (臧庆), Haiqing LIU (刘海庆), Long ZENG (曾龙), Shiyao LIN (林士耀), Biao SHEN (沈飙), Bin ZHANG (张斌), Linming SHAO (邵林明), Bingjia XIAO (肖炳甲), Jiansheng HU (胡建生), Chundong HU (胡纯栋), Liqun HU (胡立群), Liang WANG (王亮), Youwen SUN (孙有文), Guosheng XU (徐国盛), Yunfeng LIANG (梁云峰), Nong XIANG (项农), EAST Team. Realization of minute-long steady-state H-mode discharges on EAST[J]. Plasma Science and Technology, 2017, 19(3): 32001-032001. DOI: 10.1088/2058-6272/19/3/032001
[6]	LIU Peng (刘鹏), XU Guosheng (徐国盛), WANG Huiqian (汪惠乾), JIANG Min (蒋敏), et al.. Reciprocating Probe Measurements of L-H Transition in LHCD H-Mode on EAST[J]. Plasma Science and Technology, 2013, 15(7): 619-622. DOI: 10.1088/1009-0630/15/7/03
[7]	WANG Dongsheng (王东升), GUO Houyang (郭后扬), SHANG Yizi (尚毅梓), GAN Kaifu (甘开福), WANG Huiqian (汪惠乾), CHEN Yingjie (陈颖杰), et al. Radiative Divertor Plasma Behavior in L- and H-Mode Discharges with Argon Injection in EAST[J]. Plasma Science and Technology, 2013, 15(7): 614-618. DOI: 10.1088/1009-0630/15/7/02
[8]	WANG Fumin (王福敏), GAN Kaifu (甘开福), GONG Xianzu (龚先祖), EAST team. Temperature Distribution and Heat Flux on the EAST Divertor Targets in H-Mode[J]. Plasma Science and Technology, 2013, 15(3): 225-229. DOI: 10.1088/1009-0630/15/3/07
[9]	HUANG Xianli (黄贤礼), SHI Zhongbing (石中兵), CUI Zhengying (崔正英), ZHONG Wulv (钟武律), DONG Yunbo (董云波), CHEN Chengyuan (陈程远), FENG Beibin (冯北滨), YAO Lianghua (姚良骅), LIU Zetian (刘泽田), DING Xuantong (丁玄同), et al. Heat Transport During H-Mode in the HL-2A Tokamak[J]. Plasma Science and Technology, 2013, 15(3): 221-224. DOI: 10.1088/1009-0630/15/3/06
[10]	Y. PIANROJ, T. ONJUN. Simulations of H-Mode Plasmas in Tokamak Using a Complete Core-Edge Modeling in the BALDUR Code[J]. Plasma Science and Technology, 2012, 14(9): 778-788. DOI: 10.1088/1009-0630/14/9/02

Cited By

Cited by

Periodical cited type(4)

1.	Geng, J.S., Li, P., Li, Y.D. et al. Spontaneous evolution of density peaking factor in TEM turbulence-dominated H-mode plasma on the EAST Tokamak. Scientific Reports, 2025, 15(1): 7738. DOI:10.1038/s41598-025-91363-8
2.	Chen, F., Hu, Y.C., Li, Y.D. et al. Strong electron temperature stiffness induced by broad-band turbulence in high poloidal beta plasmas on EAST. Nuclear Fusion, 2025, 65(4): 046014. DOI:10.1088/1741-4326/adbb80
3.	Sun, N., Li, Y.D., Li, P. et al. Broad wavenumber turbulence measurement in the same region on EAST. Plasma Physics and Controlled Fusion, 2025, 67(1): 015029. DOI:10.1088/1361-6587/ad9e79
4.	Chen, F., Li, P., Li, Y.D. et al. High-k turbulence characteristics in density modulation experiments of EAST. AIP Advances, 2024, 14(6): 065213. DOI:10.1063/5.0197005

1.	Geng, J.S., Li, P., Li, Y.D. et al. Spontaneous evolution of density peaking factor in TEM turbulence-dominated H-mode plasma on the EAST Tokamak. Scientific Reports, 2025, 15(1): 7738. DOI:10.1038/s41598-025-91363-8
2.	Chen, F., Hu, Y.C., Li, Y.D. et al. Strong electron temperature stiffness induced by broad-band turbulence in high poloidal beta plasmas on EAST. Nuclear Fusion, 2025, 65(4): 046014. DOI:10.1088/1741-4326/adbb80
3.	Sun, N., Li, Y.D., Li, P. et al. Broad wavenumber turbulence measurement in the same region on EAST. Plasma Physics and Controlled Fusion, 2025, 67(1): 015029. DOI:10.1088/1361-6587/ad9e79
4.	Chen, F., Li, P., Li, Y.D. et al. High-k turbulence characteristics in density modulation experiments of EAST. AIP Advances, 2024, 14(6): 065213. DOI:10.1063/5.0197005

Other cited types(0)

Get Citation

PDF

XML

Article views (168) PDF downloads (225) Cited by(4)

Turn off MathJax

Article Contents

Abstract

References

Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST