Comparison of top and side launch of lower hybrid waves in the PLT tokamak

Journal Article · Mon Jul 01 00:00:00 EDT 1985 · AIP Conf. Proc.; (United States)

DOI:https://doi.org/10.1063/1.35246· OSTI ID:5795739

Bernabei, S; Cavallo, A; Chu, T K; Hooke, W; Jobes, F; Meservey, E; Motley, R; Stevens, J; von Goeler, S; Guharay, S

For identical 90/sup 0/ settings the side coupler of the PLT 2.45 GHz, 1 MW lower hybrid system is more efficient at driving current than the top coupler at densities between 1 and 2 x 10/sup 13/ cm/sup -3/. We interpret this to be a reflection of the toroidal n/sub parallel/ upshift introduced by top launch. Measurements with 90/sup 0//60/sup 0/ (side/top) phase setting produces identical ..delta..I, as predicted theoretically from the ray tracing code.

• Research Organization: Princeton University, Plasma Physics Laboratory, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5795739
• Report Number(s): CONF-8505130-
• Journal Information: AIP Conf. Proc.; (United States), Vol. 129:1; Conference: 6. topical conference on radio frequency plasma heating, Pine Mountain, GA, USA, 13 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
ENERGY SPECTRA
LOWER HYBRID HEATING
PLT DEVICES
PLASMA HEATING
WAVEGUIDES
AZIMUTH
CORRELATIONS
CURRENT-DRIVE HEATING
DAMPING
EFFICIENCY
ELECTRIC CURRENTS
EXPERIMENTAL DATA
GHZ RANGE 01-100
CURRENTS
DATA
ELECTRIC HEATING
FREQUENCY RANGE
GHZ RANGE
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
JOULE HEATING
NUMERICAL DATA
RESISTANCE HEATING
SPECTRA
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production
700108 - Fusion Energy- Plasma Research- Wave Phenomena
700205 - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems