Published December 1989
| Version v1
Journal article
Comments on ''Plasma current drive by injection of photons with helicity'' [Comm. Plasma Phys. Controlled Fusion 12, 165 (1989)]
Creators
- 1. California Institute of Technology, Pasadena, California 91125 (USA)
Description
Ohkawa has proposed a tokamak current-drive scheme [Comm. Plasma Phys. Controlled Fusion 12, 165 (1989)], which relies on the injection of circularly polarized magnetohydrodynamic waves. It is shown here that the favorable current-drive efficiency predicted by Ohkawa is not attained because excessive power is dissipated by the fluctuating fields. The ratio of power absorbed by the plasma to the dc Ohmic power required to drive the same current is Pabsorbed/POhmic∼4(Ba/b)2, where Ba is the static toroidal field strength and b is the strength of the fluctuating field
Additional details
Publishing Information
- Journal Title
- Physics of Fluids B
- Journal Volume
- 1
- Journal Issue
- 12
- Series
- Phys. Fluids B.
- Journal Page Range
- 2533-2534
- ISSN
- 0899-8221
- CODEN
- PFBPE
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21029532
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CURRENT-DRIVE HEATING; DIRECT CURRENT; EFFICIENCY; ENERGY DEPOSITION; ENERGY LOSSES; FLUCTUATIONS; MAGNETOHYDRODYNAMICS; PLASMA; PLASMA HEATING; POLARIZATION; POWER SYSTEMS; TOKAMAK DEVICES; TOROIDAL CONFIGURATION; WAVE PROPAGATION
- Descriptors DEC
- ANNULAR SPACE; CLOSED CONFIGURATIONS; CLOSED PLASMA DEVICES; CONFIGURATION; CURRENTS; ELECTRIC CURRENTS; FLUID MECHANICS; HEATING; HYDRODYNAMICS; MAGNETIC FIELD CONFIGURATIONS; MECHANICS; THERMONUCLEAR DEVICES; VARIATIONS