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Review of highly charged tungsten spectroscopy research using low energy EBITs at the Shanghai EBIT laboratory

Qiu, M. L.; Li, W. X.; Zhao, Z. Z.; Yang, Y.; Xiao, J.; Brage, Tomas LU ; Hutton, R. and Zou, Y. (2015) In Journal of Physics B: Atomic, Molecular and Optical Physics 48(14).
Abstract
We present an overview of recent work on the spectroscopy of tungsten ions, related to tokamak edge plasma. The spectra were recorded from the newly-built low energy electron beam ion traps (EBITs) in the Shanghai EBIT laboratory. By analyzing the spectra with the help of accurate theoretical calculations, using state-of-the-art techniques, we were able to identify term and fine structure splittings in the ground and the first excited configuration for a number of charge states. The theoretical models included a careful study of correlation and showed an excellent agreement with our experimental results for transition energies and rates. Some metastable levels which have extremely long lifetime and high population were found, and the... (More)
We present an overview of recent work on the spectroscopy of tungsten ions, related to tokamak edge plasma. The spectra were recorded from the newly-built low energy electron beam ion traps (EBITs) in the Shanghai EBIT laboratory. By analyzing the spectra with the help of accurate theoretical calculations, using state-of-the-art techniques, we were able to identify term and fine structure splittings in the ground and the first excited configuration for a number of charge states. The theoretical models included a careful study of correlation and showed an excellent agreement with our experimental results for transition energies and rates. Some metastable levels which have extremely long lifetime and high population were found, and the influences of these levels on the charge state distribution of tungsten ions in tokamaks are discussed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
spectroscopy, highly charged ion, EBIT
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
48
issue
14
publisher
IOP Publishing
external identifiers
  • wos:000357529800030
  • scopus:84936805979
ISSN
0953-4075
DOI
10.1088/0953-4075/48/14/144029
language
English
LU publication?
yes
id
33bb3f56-5035-42e1-a634-775420919b61 (old id 7790729)
date added to LUP
2015-09-03 15:30:12
date last changed
2017-09-10 04:15:43
@article{33bb3f56-5035-42e1-a634-775420919b61,
  abstract     = {We present an overview of recent work on the spectroscopy of tungsten ions, related to tokamak edge plasma. The spectra were recorded from the newly-built low energy electron beam ion traps (EBITs) in the Shanghai EBIT laboratory. By analyzing the spectra with the help of accurate theoretical calculations, using state-of-the-art techniques, we were able to identify term and fine structure splittings in the ground and the first excited configuration for a number of charge states. The theoretical models included a careful study of correlation and showed an excellent agreement with our experimental results for transition energies and rates. Some metastable levels which have extremely long lifetime and high population were found, and the influences of these levels on the charge state distribution of tungsten ions in tokamaks are discussed.},
  articleno    = {144029},
  author       = {Qiu, M. L. and Li, W. X. and Zhao, Z. Z. and Yang, Y. and Xiao, J. and Brage, Tomas and Hutton, R. and Zou, Y.},
  issn         = {0953-4075},
  keyword      = {spectroscopy,highly charged ion,EBIT},
  language     = {eng},
  number       = {14},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  title        = {Review of highly charged tungsten spectroscopy research using low energy EBITs at the Shanghai EBIT laboratory},
  url          = {http://dx.doi.org/10.1088/0953-4075/48/14/144029},
  volume       = {48},
  year         = {2015},
}