Objectives
To measure the line integral electron density in the divertor region.
[Detectors, Diagnostic Method]
A mm-wave interferometer with two probing frequencies using heterodyne detection.
Specification
| Source frequencies | : 217 and 183 GHz |
| Source power | : 11 (217GHz) and 15 (183GHz) mW |
| Measuring chords | : 3 chords |
| Position | : P-4 section, U1-2A and U2-2A ports |
Reference
H. Takenaga et al., Review of Scientific Instruments, Vol.69 (1998) 3181.
