期刊论文

英文

PLASMA SCIENCE & TECHNOLOGY

等离子体科学与技术:英文版

1009-0630

2020

22

8

084002

10.1088/2058-6272/ab84ee

National Magnetic Confinement Fusion Science Program of China [2017YFE0301300, 2018YFE0301100]; Key Program of Research and Development of the Hefei Science Center [2017HSC-KPRD002]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11805231, 11705151]; ASIPP Science and Research Grant [DSJJ-17-03]; Anhui Provincial Natural Science FoundationNatural Science Foundation of Anhui Province [1808085QA14, 1908085J01]; Instrument Developing Project of the Chinese Academy of Sciences [YJKYYQ20180013]; Collaborative Innovation Program of Hefei Science Center, CAS [2019HSC-CIP005]; Nature Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2017JJ3268]; Hunan Nuclear Fusion International Science and Technology Innovation Cooperation Base [2018WK4009]; Key Laboratory of Magnetic Confinement Nuclear Fusion Research in Hengyang [2018KJ108]

本校为其他机构

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 angstrom are found to be diffracted by He-like or H-like ...