Line identification of extreme ultraviolet (EUV) spectra from low-Z impurity ions in EAST tokamak plasmas

LI Lei, L Zhang, XU Zong, S Morita… - Plasma Science and …, 2021 - iopscience.iop.org
impurity behavior and study the impurity transport in EAST plasma, several extreme ultraviolet
… to observe line emissions and profiles from highly ionized impurity ions [17, 18]. Two fast-…

A fast-time-response extreme ultraviolet spectrometer for measurement of impurity line emissions in the Experimental Advanced Superconducting Tokamak

L Zhang, S Morita, Z Xu, Z Wu, P Zhang… - Review of Scientific …, 2015 - pubs.aip.org
… to monitor the behavior of such impurity ions and improve the plasma performance of EAST
discharges. In particular, the study of tungsten ion behavior is crucially important in short and …

Extreme ultraviolet spectroscopy applied to study RMP effects on core impurity concentration in EAST

G Vogel, H Zhang, Y Shen, Y Sun… - … on Plasma Science, 2018 - ieeexplore.ieee.org
… , the cross-field transport of impurity ions with larger gyroradius is selectively enhanced, … for
larger-gyroradius impurity ions. Finally, the core impurity concentration for high-Z impurities is …

Space-resolved extreme ultraviolet spectrometer system for impurity behavior research on experimental advanced superconducting Tokamak

Y Shen, X Du, W Zhang, Q Wang, Y Li, J Fu… - Nuclear Instruments and …, 2013 - Elsevier
impurity survey due to the fact that a large amount of emission from many ions is within
extreme ultraviolet region, such as hydrogen-like and helium-like lines of low-Z intrinsic impurities

Impurity emission behavior in the soft X-ray and extreme ultraviolet range on EAST

S Yongcai, LYU Bo, DU Xuewei… - Plasma Science and …, 2015 - iopscience.iop.org
… could contribute to the impurity accumulation in the … impurity injections were widely used
on EAST for diagnostic purposes, for example, argon puffing was mainly used to measure ion

Line identification of extreme ultraviolet (EUV) spectra from iron, copper and molybdenum ions in EAST tokamak

W Zhang, L Zhang, Y Cheng, S Morita, Z Wang… - Physica …, 2022 - iopscience.iop.org
impurity behavior in fusion plasmas. A grazing-incidence spectrometer working at extreme
ultraviolet … to observe the spectral lines emitted from impurity ions staying in plasma core and …

Design of a high–efficiency extreme ultraviolet overview spectrometer system for plasma impurity studies on the stellarator experiment Wendelstein 7-X

W Biel, G Bertschinger, R Burhenn, R König… - Review of scientific …, 2004 - pubs.aip.org
… of the relevant impurity ions radiate within the vacuum ultraviolet/extreme ultraviolet (VUV/…
The observation of line radiation emitted from the various ionisation stages of impurity ions

Measuring plasma impurities in Alcator C-Mod as a function of time in the extreme ultraviolet

P Beiersdorfer, GV Brown, JB Kamp… - Canadian Journal of …, 2011 - cdnsciencepub.com
… a spectrometer on the Livermore electron beam ion trap facility and on the National Spherical
… It is being used to monitor the presence of impurity ions such as boron, oxygen, fluorine, …

Extreme-ultraviolet spectral purity and magnetic ion debris mitigation by use of low-density tin targets

SS Harilal, MS Tillack, Y Tao, B O'Shay, R Paguio… - Optics Letters, 2006 - opg.optica.org
extreme-ultraviolet (EUV) emission from targets that contain tin as an impurity and the advantages
of using these targets for ion … Sn as an impurity as well as the effective mitigation of ion

Extreme ultraviolet and visible spectroscopy of promethiumlike heavy ions

Y Kobayashi, K Kubota, K Omote, A Komatsu, J Sakoda… - Physical Review A, 2015 - APS
… For bismuth, the peak intensity is too weak to determine its attribution; thus it can be the
line from other charge states of bismuth or even from an impurity ion. For gold, it is definitely …