Interferometer in Divertor Region
[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.