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Development of wavelength calibration techniques for high-resolution x-ray imaging crystal spectrometers on the EAST tokamak

文献类型：期刊论文

作者Lyu, B.5; Chen, J.4,5; Hu, R. J.4,5; Delgado-Aparicio, L. F.3; Wang, F. D.5; Bitter, M.3; Hill, K. W.3; Pablant, N.3; Lee, S. G.2; Ye, M. Y.4
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
出版日期2018-10-01
卷号89期号:10页码:5
ISSN号0034-6748
DOI10.1063/1.5039314
通讯作者Lyu, B.(blu@ipp.ac.cn)
英文摘要Newly developed large-area pixelated two-dimensional detector and two-crystal assemblies were deployed for the first time on tokamaks to enable time-resolved Bragg-diffracted x-ray imaging with good framing rate and water-cooling capabilities for in-vacuum long-pulse operations. High-quality helium-like (He-like) and hydrogen-like (H-like) argon spectra have been observed simultaneously for the first time on a single detector for a wide range of plasma parameters to infer both ion temperature and rotation profiles and support studies on spontaneous rotation, impurity transport, and RF physics. Since tokamak plasmas rotate in both the poloidal (theta) and toroidal (phi) directions, a reliable wavelength calibration is needed to account for the correct Doppler shift as well as to compute the spectrometer's instrumental function. Ly(alpha) lines emitted from Cd x-ray tubes are proposed to be used as "markers" to provide an in situ calibration of the EAST's X-ray imaging crystal spectrometer systems measuring He-and H-like argon spectra. The first lab test indicated that the X-ray tube can excite strong Ly(alpha) lines at 15 kV voltage and 1 mA current when the crystal is shined for 10 min. Other indirect calibration methods using locked-mode discharge scenarios were also studied as complementary methods. Published by AIP Publishing.
资助项目National Magnetic Confinement Fusion Science Program of China[2015GB103002] ; Key Program of Research and Development of Hefei Science Center[2017HSC-KPRD002] ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology[2016FXZY008] ; Chinese Academy of Sciences President's International Fellowship Initiative[2018VMA0052]
WOS研究方向Instruments & Instrumentation ; Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000449144500101
资助机构National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/34316]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Lyu, B.
作者单位1.Seoul Natl Univ, Dept Nucl Engn, Seoul 151742, South Korea
2.Natl Fus Res Inst, Daejeon 305333, South Korea
3.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA
4.Univ Sci & Technol China, Dept Engn & Appl Phys, Hefei 230026, Anhui, Peoples R China
5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Lyu, B.,Chen, J.,Hu, R. J.,et al. Development of wavelength calibration techniques for high-resolution x-ray imaging crystal spectrometers on the EAST tokamak[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2018,89(10):5.
APA Lyu, B..,Chen, J..,Hu, R. J..,Delgado-Aparicio, L. F..,Wang, F. D..,...&Wan, B. N..(2018).Development of wavelength calibration techniques for high-resolution x-ray imaging crystal spectrometers on the EAST tokamak.REVIEW OF SCIENTIFIC INSTRUMENTS,89(10),5.
MLA Lyu, B.,et al."Development of wavelength calibration techniques for high-resolution x-ray imaging crystal spectrometers on the EAST tokamak".REVIEW OF SCIENTIFIC INSTRUMENTS 89.10(2018):5.

入库方式： OAI收割

来源：合肥物质科学研究院

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