Spectroscopic diagnostics of future fusion reactor plasmas require information on impurity line emissions, especially for relevant high-Z metal elements (e.g., tungsten). These materials will be widely used as plasma facing components for their high heat tolerance and low sputtering yield. Based on an electron beam ion trap, a compact impurity spectra platform is developed to mimic the high-temperature environment of a fusion reactor. The proposed platform can deliver a focused e-beam at energies over 30 keV using a confining magnetic field of ∼1.0 T generated by two superconducting coils (NbTi). Cooled by a closed-loop cryocooler, the coils can avoid the usage of a complicated cryogenic system involving the handling of liquid helium. For spectroscopic studies of highly charged ions, a spherically curved crystal spectrometer is proposed to measure a wavelength range around 2–4 Å covering the typical wavelength range expected to be emitted by metal ions in a fusion plasma. This paper reports the design and development progress of the platform.
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June 2021
Research Article|
June 14 2021
A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils
B. Bin;
B. Bin
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
2
Science Island Branch, Graduate School of University of Science and Technology of China
, Hefei 230026, China
3
School of Electric Engineering, University of South China
, Hengyang 421001, China
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B. Lyu
;
B. Lyu
a)
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
a)Author to whom correspondence should be addressed: blu@ipp.ac.cn
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Y. Yang;
Y. Yang
4
Institute of Modern Physics, Fudan University
, Shanghai 200433, China
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H. M. Zhang
;
H. M. Zhang
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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Q. W. Hao;
Q. W. Hao
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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F. D. Wang;
F. D. Wang
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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C. Dai;
C. Dai
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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X. W. Du
;
X. W. Du
5
National Synchrotron Radiation Laboratory, University of Science and Technology of China
, Hefei 230029, China
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J. Fu
;
J. Fu
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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Y. Y. Li
;
Y. Y. Li
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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J. Li;
J. Li
1
Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences
, Hefei 230031, China
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Q. P. Wang
Q. P. Wang
5
National Synchrotron Radiation Laboratory, University of Science and Technology of China
, Hefei 230029, China
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a)Author to whom correspondence should be addressed: blu@ipp.ac.cn
Note: Paper published as part of the Special Topic on Proceedings of the 23rd Topical Conference on High-Temperature Plasma Diagnostics.
Rev Sci Instrum 92, 063512 (2021)
Article history
Received:
December 14 2020
Accepted:
May 22 2021
Citation
B. Bin, B. Lyu, Y. Yang, H. M. Zhang, Q. W. Hao, F. D. Wang, C. Dai, X. W. Du, J. Fu, Y. Y. Li, J. Li, Q. P. Wang; A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils. Rev Sci Instrum 1 June 2021; 92 (6): 063512. https://doi.org/10.1063/5.0040620
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