An extreme ultraviolet spectrometer installed on the Tore Supra tokamak has been
calibrated in absolute units of brightness in the range 10–340 Å. This has been performed …

Spectroscopy in the extreme ultraviolet region is important to magnetic fusion research as
well as to astrophysics. We report on XEUS (X-ray and Extreme Ultraviolet Spectrometer) …

A space-resolved extreme ultraviolet (EUV) spectrometer has been upgraded by extending
the wavelength range to 30-650 Å to explore impurity line emissions existing at shorter and …

We have measured extreme ultraviolet spectra from tungsten ions in the 20 nm region in
plasmas produced in the Large Helical Device at the National Institute for Fusion Science …

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 …

The tungsten spectrum in the extreme ultraviolet (EUV) wavelength range has been
investigated in tokamak HL-2A to find line emissions from low-ionized tungsten ions which …

We have measured extreme ultraviolet (EUV) spectra from highly charged tungsten ions in
low-density and high-temperature plasmas produced in the Large Helical Device at the …

The new high effiency extreme ultraviolet overview spectrometer (HEXOS) system for the
stellarator Wendelstein 7-X is now mounted for testing and adjustment at the tokamak …

A high-speed vacuum ultraviolet (VUV) imaging system for edge plasma studies is being
developed on the Experimental Advanced Superconducting Tokamak (EAST). Its key optics …

Tungsten is foreseen for a full W-divertor of JET where tungsten will totally replace carbon as
the material for the target plate. Also ITER operation is planned to be carried out with …