Lower hybrid wave heating in Doublet IIA

Conference · Wed Feb 01 04:00:00 EST 1978

DOI:https://doi.org/10.1016/B978-1-4832-8384-5.50035-1· OSTI ID:6635876

Moeller, C. P.; Brooks, N. H.; Chan, V. S.

Doublet IIA electron heating experiments utilize lower hybrid waves launched by slow wave structures with various n/sub parallel/ = ck/sub parallel//..omega.. (11, 14, 16) to achieve spatially localized heating by electron Landau damping. Radiofrequency power of 350 kW at 800 MHz and 200 kW at 915 MHz is available to heat circular discharges with ohmic input power of 100 kW. Significant increases in the electrical conductivity have been observed, but plasma response to the rf power is sensitive to the impurity level of the discharge. Power absorption mechanisms and energy balance will be discussed.

• Research Organization: General Atomic Co., San Diego, CA (USA)
• DOE Contract Number: EY-76-C-03-0167-038
• OSTI ID: 6635876
• Report Number(s): GA-A-14881; CONF-780702-6
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED PLASMA DEVICES
DAMPING
DOUBLET-2 DEVICE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON TEMPERATURE
ENERGY BALANCE
HEATING
HIGH-FREQUENCY HEATING
HYBRID RESONANCE
LANDAU DAMPING
PHYSICAL PROPERTIES
PLASMA HEATING
RESONANCE
THERMONUCLEAR DEVICES
TOKAMAK DEVICES