Current drive by fast magnetosonic waves near the lower hybrid frequency in the JIPP T-IIU tokamak

Journal Article · Mon May 12 00:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.56.2040· OSTI ID:5521349

Ohkubo, K; Hamada, Y; Ogawa, Y; Mohri, A; Akiyama, R; Ando, R; Hirokura, S; Kako, E; Kawahata, K; Kawasumi, Y

Current drive by fast magnetosonic waves is successfully performed in the JIPP T-IIU tokamak by means of a four-element dipole antenna array with a Faraday shield. A plasma current of about 50 kA is sustained by an RF power of about 80 kW in a low-density plasma (3 x 10/sup 12/ cm/sup -3/) with an efficiency comparable to that of slow wave current drive. A density limit for fast magnetosonic current drive is observed contrary to theoretical expectations based on linear wave propagation.

• Research Organization: Institute of Plasma Physics, Nagoya University, Nagoya 464, Japan
• OSTI ID: 5521349
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 56:19
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CURRENT-DRIVE HEATING
MAGNETOACOUSTIC WAVES
JIPPT-2 DEVICE
PLASMA CONFINEMENT
PLASMA
ANTENNAS
ELECTRIC CURRENTS
CORRELATIONS
EFFICIENCY
EXPERIMENTAL DATA
FARADAY EFFECT
LOWER HYBRID HEATING
TIME DEPENDENCE
CLOSED PLASMA DEVICES
CONFINEMENT
CURRENTS
DATA
ELECTRIC HEATING
ELECTRICAL EQUIPMENT
EQUIPMENT
HEATING
HIGH-FREQUENCY HEATING
HYDROMAGNETIC WAVES
INFORMATION
JOULE HEATING
NUMERICAL DATA
PLASMA HEATING
RESISTANCE HEATING
STELLARATORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700108* - Fusion Energy- Plasma Research- Wave Phenomena
700101 - Fusion Energy- Plasma Research- Confinement
Heating
& Production