Spectroscopic studies for emissions released from tungsten ions have been conducted in
the Large Helical Device (LHD) for contribution to the tungsten transport study in tungsten …

Spectroscopic studies for emissions released from tungsten ions have been conducted in
the Large Helical Device (LHD) for contribution to the tungsten transport study in tungsten …

In ITER (International Thermonuclear Experimental Reactor), which is a next-generation
device for fusion research carrying out DT burning plasma experiments, the tungsten …

Tungsten is regarded as a leading candidate material for the plasma facing components
(PFCs) in ITER and future fusion reactors because of its high melting point, low sputtering …

Spectroscopic studies of emissions released from tungsten ions combined with a pellet
injection technique have been conducted in the Large Helical Device. The tungsten …

Quantitative tungsten study with reliable atomic modeling is important for successful
achievement of ITER and fusion reactors. We have developed tungsten atomic modeling for …

Vacuum ultraviolet spectra of line emissions from tungsten ions at lower ionization stages
have been measured in the large helical device (LHD) using a high-resolution 3 m normal …

Behavior of multiply charged ions in fusion plasmas represented by tungsten ions has
attracted attention because tungsten is regarded as a leading candidate material for the …

Tungsten ion densities are determined by measuring radial profiles of line emissions in
LHD. Zn-(W 44+) and Cu-like (W 45+) ion densities are determined from line emission at …

We found 12 unknown visible emission lines from the core plasma of large helical device
with highly charged tungsten ions accumulated. The observation was made with our home …