Electron heating by lower hybrid waves in the PLT tokamak

Journal Article · Mon Mar 28 04:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.1294· OSTI ID:5256376

Bell, R E; Bernabei, S; Cavallo, A; Chu, T K; Luce, T; Motley, R; Ono, M; Stevens, J; von Goeler, S

Lower hybrid waves with a narrow, high-velocity wave spectrum have been used to achieve high central electron temperatures in a tokamak plasma. Waves with a frequency of 2.45 GHz launched by a sixteen-waveguide grill at a power level less than 600 kW were used to increase the central electron temperature of the PLT plasma from 2.2 to 5 keV. Associated with this temperature increase was an apparent reduction in the central electron thermal diffusivity. The magnitude of the temperature increase depends strongly on the phase difference between waveguides and on the direction of the launched wave.

• Research Organization: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5256376
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:13; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ELECTRON TEMPERATURE
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HEATING
HIGH-FREQUENCY HEATING
LOWER HYBRID HEATING
PLASMA
PLASMA HEATING
PLT DEVICES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
WAVEGUIDES