Electron cyclotron heating experiments on Doublet III

Conference · Thu Mar 01 04:00:00 EST 1984

OSTI ID:7183559

Prater, R; Ejima, S; Lin, S H; Moeller, C; Hsu, J Y; Matsuda, K; Stockdale, R

Electron cyclotron heating experiments on the Doublet III tokamak using up to 250 kW of power at 60 GHz have been performed. The power is launched either as a pure ordinary mode from the low field side or as a pure extraordinary mode from the high field side. The ordinary mode power has shown effective heating under suitable operating conditions, with ..delta..(T/sub e/ + T/sub i/) = 4.8 eV/kW at a density of 2.5 x 10/sup 19/m/sup -3/, in agreement with ray tracing and transport calculations. The effect of ECH on energy confinement time is small, for ECH power up to double the ohmic power. A small amount of data is available from inside launch experiments, which showed heating at densities above the ordinary mode cutoff density. Experiments with long pulse (500 msec) and high delivered power (1 MW) are planned for the summer.

• Research Organization: GA Technologies, Inc., San Diego, CA (USA)
• DOE Contract Number: AT03-84ER51044
• OSTI ID: 7183559
• Report Number(s): GA-A-17494; CONF-840311-6; ON: DE84010936
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CONFINEMENT TIME
DOUBLET REACTORS
ECR HEATING
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUID INJECTION
GAS INJECTION
HEATING
HIGH-FREQUENCY HEATING
MICROWAVE EQUIPMENT
PERFORMANCE
PLASMA HEATING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS