The dynamics of core temperature fluctuations during sawtooth oscillations on TEXT-U
- Auburn Univ., AL (United States). Dept. of Physics
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 oscillation. A global linear relationship between the temperature fluctuation amplitude and the electron temperature gradient scale length is found. 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.
- Research Organization:
- Texas Univ., Austin, TX (United States). Fusion Research Center
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- FG03-94ER54241
- OSTI ID:
- 468600
- Report Number(s):
- DOE/ER/54241-144; FRCR-463; ON: DE97004808; TRN: 97:010170
- Resource Relation:
- Other Information: PBD: 3 May 1995
- Country of Publication:
- United States
- Language:
- English
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