Observation of a plateau electron distribution function due to electron cyclotron heating for an efficient plug potential formation
Journal Article
·
· Physical Review Letters; (USA)
- Plasma Research Centre, University of Tsukuba, Ibaraki 305, Japan (JP)
A plateau-shaped electron distribution function is observed when an electrostatic electron-trapping potential is formed by the electron cyclotron heating (ECH) in the plug region of the GAMMA 10 tandem mirror. Also, a remarkable thermal isolation effect due to a kV-range thermal barrier is observed along with the difference between distribution functions in thermally separated regions. These new findings as well as the relation between ion-confining potentials and thermal-barrier potentials in the kV range consistently support the validity of Cohen's strong ECH theory.
- OSTI ID:
- 7000211
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:12; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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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
CORRELATIONS
COULOMB FIELD
DATA
DISTRIBUTION FUNCTIONS
ECR HEATING
ELECTRIC FIELDS
ENERGY RANGE
EXPERIMENTAL DATA
FUNCTIONS
GAMMA 10 DEVICES
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
KEV RANGE
MAGNETIC MIRRORS
MEASURING METHODS
NUMERICAL DATA
OPEN PLASMA DEVICES
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
PLATEAU REGIME
SPECTRA
TANDEM MIRRORS
THERMAL BARRIERS
THERMOGRAPHY
THERMONUCLEAR DEVICES
TRAPPING
X-RAY SPECTRA
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
CORRELATIONS
COULOMB FIELD
DATA
DISTRIBUTION FUNCTIONS
ECR HEATING
ELECTRIC FIELDS
ENERGY RANGE
EXPERIMENTAL DATA
FUNCTIONS
GAMMA 10 DEVICES
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
KEV RANGE
MAGNETIC MIRRORS
MEASURING METHODS
NUMERICAL DATA
OPEN PLASMA DEVICES
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
PLATEAU REGIME
SPECTRA
TANDEM MIRRORS
THERMAL BARRIERS
THERMOGRAPHY
THERMONUCLEAR DEVICES
TRAPPING
X-RAY SPECTRA