Fast scanning heterodyne receiver for the measurement of the time evolution of the electron temperature profile on the Tokamak Fusion Test Reactor

Journal Article · Thu Nov 01 04:00:00 EST 1984 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1137668· OSTI ID:5991501

Taylor, G; Efthimion, P; McCarthy, M; Arunasalam, V; Bitzer, R; Bryer, J; Cutler, R; Fredd, E; Goldman, M A; Kaufman, D

Two fast scanning heterodyne receivers, swept between 75--110 and 110--170 GHz in 2 ms every 4 ms, were developed to measure the electron cyclotron emission on the horizontal midplane of the Tokamak Fusion Test Reactor (TFTR) plasma. An absolute, in situ calibration technique enables the determination of the profile of the plasma electron temperature from the cyclotron emission intensity. The 4-ms repetition rate of the receiver allowed the resolution of ''sawtooth'' fluctuations of temperature, whose period was 10--100 ms, in profiles with central temperatures of 1--2.5 keV.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544
• OSTI ID: 5991501
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 55:11; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700104 -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Experimental-- (-1987)
CALIBRATION
CYCLOTRON RESONANCE
DESIGN
ELECTROMAGNETIC RADIATION
ELECTRON CYCLOTRON-RESONANCE
ELECTRON EMISSION
ELECTRON TEMPERATURE
ELECTRONIC EQUIPMENT
EMISSION
ENERGY RANGE
EQUIPMENT
FREQUENCY RANGE
GHZ RANGE
HARMONICS
HETERODYNE RECEIVERS
KEV RANGE
KEV RANGE 01-10
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
MICROWAVE RADIATION
OSCILLATIONS
PLASMA DIAGNOSTICS
RADIATION DETECTORS
RADIATIONS
RADIO EQUIPMENT
RADIOMETERS
RESONANCE
TFTR REACTORS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS