Amplitude modulation reflectometry system for the FTU tokamak
Amplitude modulation (AM) reflectometry is a modification of the classical frequency sweep technique which provides unambiguous phase delay measurements. A broad-band AM reflectometer has been constructed for the measurement of density profiles on the FTU tokamak in the 0.34 x 1.0 E-20/m3 range. The characteristics of the instrument have been determined in extensive laboratory tests; particular attention has been devoted to the effect of interference with parasitic reflections, that appears to be the main drawback of the AM technique. Possible ways to overcome this effect are indicated.
Bibliographic Reference: Paper presented: 10th Annual High-temperature Plasma Diagnostics, Rochester, New York (US), May 8-12, 1994
Availability: Available from (1) as Paper EN 38380 ORA
Record Number: 199410784 / Last updated on: 1994-11-28
Original language: en
Available languages: en