60-ch Fiber Optics for Divertor
To observe intensity distribution of spectral lines and bands for study
of behavior of atoms and ions in the divertor region.
[Detectors, Diagnostic Method]
Light collected by lenses is transmitted by optical fibers from the torus
hall to a diagnostic room.
The light from the optical fibers are split into four components that pass
four interference filters.
Four 512-ch image-intensified photodiode arrays observe the image of the
|薇umber of spectral
|| lines or bands to be observed simultaneously : 4|
|・Time resolution ||: 100 ms|
|・Spatial resolution||: 10 mm (60 ch.)|
|・Wavelength band||: ~ 1 nm|
|・Position ||: P-8 upper outside port|
H. Kubo, et al., "Spectroscopic study of radiative losses in the JT-60U
divertor plasma", Plasma Phys. Control. Fusion 37 (1995) 1133.