Radial scale length of turbulent fluctuations in the main core of TFTR plasmas
- 20 September 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (12), 1840-1843
- https://doi.org/10.1103/physrevlett.71.1840
Abstract
A new theory of microwave reflectometry is applied to turbulence measurements in the TFTR tokamak. Results indicate that in the main core of neutral beam heated plasmas in the supershot regime, the radial correlation length of density fluctuations is a weak decreasing function of heating power in the range 2–4 cm. Over the same interval of heating powers (0–14 MW), the level of density fluctuations is observed to steadily increase by more than an order of magnitude.Keywords
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