The electrostatic turbulence in the edge plasma of the RFX reversed field pinch experiment has been studied using Langmuir probes and a homodyne reflectometer. The radial particle flux driven by electrostatic fluctuations has been measured in the region where a double E × B velocity shear layer occurs. It is found that almost 100% of the particle flux at the edge is driven by electrostatic fluctuations. The naturally occurring E × B velocity shear has been shown to be close to that required Biglari-Diamond-Terry criterion for turbulence radial decorrelation.
Electrostatic Turbulence and Transport in the Velocity Shear Layer of a Reversed Field Pinch Plasma
DESIDERI, DANIELE;
1998
Abstract
The electrostatic turbulence in the edge plasma of the RFX reversed field pinch experiment has been studied using Langmuir probes and a homodyne reflectometer. The radial particle flux driven by electrostatic fluctuations has been measured in the region where a double E × B velocity shear layer occurs. It is found that almost 100% of the particle flux at the edge is driven by electrostatic fluctuations. The naturally occurring E × B velocity shear has been shown to be close to that required Biglari-Diamond-Terry criterion for turbulence radial decorrelation.File in questo prodotto:
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