RF heating and current drive experiment on JT-60
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:7020508
Recent experimental results of Lower Hybrid and Ion Cyclotron Range of Frequencies (LHRF and ICRF) heating and current drive are presented on JT-60 at JAERI. Three LHRF at 2 GHz and one ICRF at 120 MHz system are installed in JT-60. Each unit has launched 2.1--2.4 MW of RF power into the JT-60, so far. Steady current up to 2 MA for 2.5 sec have been maintained only by LHCD at a density of n-bar/sub e/ = 0.32 x 10/sup 19/ m/sup -3/ with 3.1 MW. The current drive efficiency defined by eta/sub C//sub D/ = n-bar/sub e/ (10/sup 19/ m/sup -3/)R(m)I/sub R//sub F/(MA)/P/sub L//sub H/(MW) reach 1.5--3.0 by combination of LHCD and NBI heating. High central electron heating up to 6 keV is demonstrated at the density n-bar/sub e/ = 1.7 x 10/sup -19/ m/sup -3/. Current profile control and improvement of energy confinement time via LHCD is observed with and without NBI heating. Optimization of the second harmonic ICRF heating is studied with 2 x 2 phased loop antenna. In combination heating of ICRF and NBI, remarkable beam acceleration is observed in the plasma core.
- Research Organization:
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki-ken 311-02, Japan
- OSTI ID:
- 7020508
- Report Number(s):
- CONF-870570-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 159:1
- Country of Publication:
- United States
- Language:
- English
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Conference
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· AIP Conference Proceedings (American Institute of Physics); (United States)
·
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANTENNAS
BREMSSTRAHLUNG
CHARGED PARTICLES
CONFINEMENT
COUPLING
CURRENT-DRIVE HEATING
CYCLOTRON RADIATION
DATA
ELECTRIC HEATING
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ENERGY RANGE
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
IONS
JAERI
JAPANESE ORGANIZATIONS
JOULE HEATING
JT-60 TOKAMAK
KEV RANGE
KEV RANGE 01-10
LOWER HYBRID HEATING
NATIONAL ORGANIZATIONS
NUMERICAL DATA
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA HEATING
POWER
RADIATIONS
RESISTANCE HEATING
RF SYSTEMS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANTENNAS
BREMSSTRAHLUNG
CHARGED PARTICLES
CONFINEMENT
COUPLING
CURRENT-DRIVE HEATING
CYCLOTRON RADIATION
DATA
ELECTRIC HEATING
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ENERGY RANGE
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
IONS
JAERI
JAPANESE ORGANIZATIONS
JOULE HEATING
JT-60 TOKAMAK
KEV RANGE
KEV RANGE 01-10
LOWER HYBRID HEATING
NATIONAL ORGANIZATIONS
NUMERICAL DATA
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA HEATING
POWER
RADIATIONS
RESISTANCE HEATING
RF SYSTEMS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS