Autocorrelation and crossed-sightline correlation of ECE for measurement of electron temperature and density fluctuations on ATF and TEXT
- Georgia Inst. of Tech., Atlanta, GA (USA). Nuclear Engineering Program
- Auburn Univ., AL (USA). Dept. of Physics
The great stumbling block in the quest for fusion power using magnetic confinement devices is anomalous transport. It is conjectured that turbulent plasma fluctuations may be responsible for the degraded energy confinement observed in experiments. There exists a clear need for more detailed experimental studies of plasma microturbulence. A conceptual design is presented for a diagnostic to measure electron temperature and density fluctuations using electron cylotron emission (ECE). The proposed ECE systems will employ auto-correlation and cross-correlation techniques to measure radiation from the Advanced Toroidal Facility (ATF) at Oak Ridge National Laboratory (ORNL) and also from the Texas Experimental Tokamak (TEXT) at the University of Texas. This set of experiments on a stellarator and a tokamak will allow a unique comparative study of the fluctuation physics in the two different magnetic configuration. The paper below presents the theoretical basis and conceptual design of the diagnostic. 23 refs., 7 figs.
- Research Organization:
- Georgia Inst. of Tech., Atlanta, GA (USA). Nuclear Engineering Program
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AS05-78ET52025
- OSTI ID:
- 6824891
- Report Number(s):
- GTFR-94; ON: DE90011618; TRN: 90-016493
- Country of Publication:
- United States
- Language:
- English
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Experimental studies of plasma fluctuations using electron cyclotron emission on ATF (Advanced Toroidal Facility) and TEXT (Texas Experimental Tokamak)
Using crossed-sightline correlation of electron cyclotron emission to measure magnetic fluctuations in plasmas
Related Subjects
ATF TORSATRON
PLASMA DIAGNOSTICS
TEXT DEVICES
CORRELATION FUNCTIONS
ELECTRON TEMPERATURE
FLUCTUATIONS
OPTICALLY THICK PLASMA
PLASMA DENSITY
TEMPERATURE DISTRIBUTION
TURBULENCE
CLOSED PLASMA DEVICES
FUNCTIONS
PLASMA
STELLARATORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TORSATRON STELLARATOR
VARIATIONS
700102* - Fusion Energy- Plasma Research- Diagnostics