Community Research and Development Information Service - CORDIS

Abstract

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.

Additional information

Authors: BURATTI P, ENEA, Centro Ricerche Energia Frascati, Roma (IT);ZERBINI M, ENEA, Centro Ricerche Energia Frascati, Roma (IT);BRODSKY Y, Institute of Applied Physics (IAP), Novgorod (RU);KOVALEV N, Institute of Applied Physics (IAP), Novgorod (RU);SHTANUK A, Institute of Applied Physics (IAP), Novgorod (RU)
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
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top