Autocorrelation and crossed-sightline correlation of ECE for measurement of electron temperature and density fluctuations on ATF and TEXT
- Nuclear Engineering Program, Georgia Institute of Technology, Atlanta, GA (USA)
- Department of Physics, Auburn University, Auburn, AL (USA)
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 cyclotron emission (ECE). The proposed ECE systems will employ autocorrelation 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 configurations. This article presents the theoretical basis and conceptual design of the diagnostic.
- OSTI ID:
- 6056055
- Journal Information:
- Review of Scientific Instruments; (USA), Vol. 61:11; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ATF TORSATRON
PLASMA DIAGNOSTICS
TEXT DEVICES
CYCLOTRON RADIATION
DESIGN
ELECTRON TEMPERATURE
EMISSION SPECTRA
FLUCTUATIONS
PLASMA DENSITY
TURBULENCE
BREMSSTRAHLUNG
CLOSED PLASMA DEVICES
ELECTROMAGNETIC RADIATION
RADIATIONS
SPECTRA
STELLARATORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TORSATRON STELLARATOR
VARIATIONS
700102* - Fusion Energy- Plasma Research- Diagnostics