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Self-similar density turbulence in the TCV tokamak

We applied conditional and wavelet analyses to identify coherent structures in the non-Gaussian intermittent electrostatic fluctuations in the scrape-off layer at CASTOR tokamak. 1.

Fluctuations and particle transport in the scrape-off layer of TCV plasmas have been investigated by probe measurements and direct comparison with two-dimensional interchange turbulence simulations at the outer midplane. The experiments demonstrate that with increasing line-averaged core plasma

Abstract not found

] was used to simulate the neutrals in the region near the inner wall. The plasma profiles were required as inputs to the code and measured values from the low-field-side scrape-off layer were used by keeping the values constant on a magnetic flux surface. For the model to reproduce the observed measurements

distribution, while for higher values a distribution suggested by Sattin is the better fit [81]. The conditionally averaged waveforms in the scrape-off layer have a sharp exponential rise with slower exponential decay. The waveform is independent of line-averaged density, major radius and amplitude

In the scrape-off layer of the JFT-2M tokamak, ion temperature was measured by means of two types of double probes. Plasma density and electron temperature were measured by means of Langmuire probes. The results show that they decayed exponentially with radius having different decay lengths. Using

Recent experimental evidence suggests the importance of fast radial plasma transport in the scrape-off-layer (SOL) of tokamaks. The outward transport appears to be convective rather than diffusive, extends into the far SOL, and can produce significant recycling from the main-chamber walls

Abstract Numerical simulations of L-mode turbulence in the Scrape-Off Layer (SOL) are used to construct power scaling laws for the characteristic decay lengths of the temperature, density and heat flux at the outer midplane. Most of the results obtained are in qualitative agreement