Dynamics of Core Electron Temperature Fluctuations during Sawtooth Oscillations on TEXT-U
Journal Article
·
· Physical Review Letters
- Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
Core electron temperature fluctuations are measured in a tokamak plasma where some degree of time resolution is achieved. There is a strong correlation between the turbulence level and the phase of the sawtooth oscillations. The enhancement in fluctuations at the sawtooth crash is correlated to a steepening of the electron temperature gradient created as the sawtooth heat pulse propagates outward. A global linear relationship between the temperature fluctuation amplitude and the electron temperature gradient scale length is found.
- DOE Contract Number:
- FG05-90ER54085; FG03-94ER54241
- OSTI ID:
- 116026
- Journal Information:
- Physical Review Letters, Vol. 75, Issue 9; Other Information: PBD: 28 Aug 1995
- Country of Publication:
- United States
- Language:
- English
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