Electron heating using lower hybrid waves in the PLT tokamak
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 16-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 keV to 5 keV. The magnitude of the temperature increase depends strongly on the phase difference between the waveguides and on the direction of the launched wave. A reduction in the central electron thermal diffusivity is associated with the peaked electron temperature profiles of lower hybrid current-driven plasmas. 16 refs.
- Research Organization:
- Princeton Univ., NJ (USA). Plasma Physics Lab.
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 6268701
- Report Number(s):
- PPPL-2452; ON: DE88000121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electron heating by lower hybrid waves in the PLT tokamak
Start-up and ramp-up of the PLT tokamak by lower hybrid waves
Lower hybrid experiments on PLT using grills having various n/sub parallel/ spectral widths
Journal Article
·
Sun Mar 27 23:00:00 EST 1988
· Phys. Rev. Lett.; (United States)
·
OSTI ID:5256376
Start-up and ramp-up of the PLT tokamak by lower hybrid waves
Technical Report
·
Thu Aug 01 00:00:00 EDT 1985
·
OSTI ID:5183297
Lower hybrid experiments on PLT using grills having various n/sub parallel/ spectral widths
Technical Report
·
Fri May 01 00:00:00 EDT 1987
·
OSTI ID:6158026
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CURRENT-DRIVE HEATING
DIFFUSION
ELECTRIC HEATING
ELECTRON TEMPERATURE
HEATING
HIGH-FREQUENCY HEATING
JOULE HEATING
LOWER HYBRID HEATING
PLASMA HEATING
PLT DEVICES
POWER DISTRIBUTION
RESISTANCE HEATING
TEMPERATURE DISTRIBUTION
THERMAL DIFFUSION
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
WAVEGUIDES
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CURRENT-DRIVE HEATING
DIFFUSION
ELECTRIC HEATING
ELECTRON TEMPERATURE
HEATING
HIGH-FREQUENCY HEATING
JOULE HEATING
LOWER HYBRID HEATING
PLASMA HEATING
PLT DEVICES
POWER DISTRIBUTION
RESISTANCE HEATING
TEMPERATURE DISTRIBUTION
THERMAL DIFFUSION
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
WAVEGUIDES