Objectives
To measure intensity of visible bremsstrahlung for determination of Zeff
Detectors, Diagnostic Method
Light collected by a lens is transmitted by optical fibers from the torus hall to a diagnostic room.
The light from the optical fibers passes interference filters and are detected with photomultipliers.
Specification
| -Time resolution | : 100 ms |
| -Spatial resolution | : 20 cm (13 ch.) |
| -Wavelength | : 523.1 ± 0.5 nm |
| -Position | : P-5 side port |
Reference
H. Kubo, et al., "Impurity generation mechanism and remote radiative cooling in JT-60U divertor discharges", J. Nucl. Mater. 196 - 198 (1992) 71.
cf. Fiber Optics for Zeff measurement (Vertical), P4