@article{oai:nifs-repository.repo.nii.ac.jp:00010911,
 author = {LIU, Yang and MORITA,  Shigeru and Huang, Xianli and OISHI,  Tetsutarou and OISHI,  Tetsutaro and GOTO,  Motoshi and Zhang, Hongming},
 issue = {11},
 journal = {Review of Scientific Instruments},
 month = {Nov},
 note = {0000-0003-4221-1618, Two space-resolved extreme ultraviolet spectrometers working in wavelength ranges of 10-130 Å and 30-500 Å have been utilized to observe the full vertical profile of tungsten line emissions by simultaneously measuring upper- and lower-half plasmas of LHD, respectively. The radial profile of local emissivity is reconstructed from the measured vertical profile in the overlapped wavelength range of 30-130 Å and the up-down asymmetry is examined against the local emissivity profiles of WXXVIII in the unresolved transition array spectrum. The result shows a nearly symmetric profile, suggesting a good availability in the present diagnostic method for the impurity asymmetry study.},
 title = {Up-down asymmetry measurement of tungsten distribution in large helical device using two extreme ultraviolet (EUV) spectrometers},
 volume = {87},
 year = {2016}
}