Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST
收藏科学数据银行2022-12-05 更新2026-04-23 收录
下载链接：
https://www.scidb.cn/detail?dataSetId=3c012eeeb8bc4721b4ca43f9b8a8d542
下载链接
链接失效反馈官方服务：
资源简介：
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.
提供机构：
Institute of Plasma Physics; Hongming Zhang; University of Science and Technology of China
创建时间：
2022-10-21
