Abstract
Long-wavelength ρi<1) density turbulence has been measured with good spatial localization in the core region of a high temperature tokamak plasma with auxiliary heating. Density fluctuations of n/n>0.5% exist for k<2 cm-1 with radial and poloidal correlation lengths typically 1-2.5 cm in the confinement region, corresponding to kρi0.1-0.3. An anisotropic wave-number spectrum is observed, and estimates of the turbulence-driven transport are comparable to the anomalous transport observed in tokamaks.
Original language | English |
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Pages (from-to) | 3736-3739 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 70 |
Issue number | 24 |
DOIs | |
State | Published - 1993 |