[Objectives]
To observe spectral lines, bands and their spatial profile for study of atomic and molecular
processes in the divertor plasmas.
[Diagnostic method]
Emission collimated with lenses is transmitted through 16 optical fibers from the torus hall
to a diagnostic room. The light from the optical fibers is dispersed with the spectrometer and
the image-intensified CCD camera observes the image of the fibers.
[Specifications]
| Spectrometer 1 | |
| Spatial resolution | : 2 - 4 cm ( 16 ch ) |
| Focal length | : 0.5 m ( F/6.5 ) |
| Gratings | : 150 g/mm, 600 g/mm and 2400 g/mm |
| Wavelength resolution | : 1.3 nm, 0.29 nm and 0.054 nm |
| Wavelength band | : 150 nm, 37 nm and 7 nm |
| Time resolution | : 25 ms |
| Position | : P-8 section upper |
[Reference]
T.Nakano et al., JAERI-Research 2000-35 (2001).