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Development of wavelength calibration techniques for high-resolution x-ray imaging crystal spectrometers on the EAST tokamak
Lyu, B.1; Chen, J.1,2; Hu, R. J.1,2; Delgado-Aparicio, L. F.3; Wang, F. D.1; Bitter, M.3; Hill, K. W.3; Pablant, N.3; Lee, S. G.4; Ye, M. Y.2; Shi, Y. J.5; Wan, B. N.1
2018-10-01
发表期刊REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN0034-6748
通讯作者Lyu, B.(blu@ipp.ac.cn)
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.
DOI10.1063/1.5039314
收录类别SCI
语种英语
资助项目Chinese Academy of Sciences President's International Fellowship Initiative[2018VMA0052] ; Major Program of Development Foundation of Hefei Center for Physical Science and Technology[2016FXZY008] ; Key Program of Research and Development of Hefei Science Center[2017HSC-KPRD002] ; National Magnetic Confinement Fusion Science Program of China[2015GB103002] ; 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]
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WOS研究方向Instruments & Instrumentation ; Physics
WOS类目Instruments & Instrumentation ; Physics, Applied
WOS记录号WOS:000449144500101
出版者AMER INST PHYSICS
引用统计
被引频次：10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/34316
专题中科院等离子体物理研究所
通讯作者Lyu, B.
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Engn & Appl Phys, Hefei 230026, Anhui, Peoples R China
3.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA
4.Natl Fus Res Inst, Daejeon 305333, South Korea
5.Seoul Natl Univ, Dept Nucl Engn, Seoul 151742, South Korea
第一作者单位中科院等离子体物理研究所
通讯作者单位中科院等离子体物理研究所
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.
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