The present status of zonal flow experiments is reviewed with the historical process to attain
the concept of zonal flows, which provides a new framework for understanding turbulence …

Wendelstein 7-AS was the first modular stellarator device to test some basic elements of
stellarator optimization: a reduced Shafranov shift and improved stability properties resulted …

Azimuthal flow is driven in the edge of the Large Plasma Device (LAPD)[W. Gekelman et al,
Rev. Sci. Instrum. 62, 2875 (1991)] through biasing a section of the vacuum vessel relative to …

Gaussian process (GP)-based technique suppressing quasi-coherent noises, ie structured
noises, is developed which is more effective than conventional denoising techniques such …

Time delay estimation methods (TDE) are well-known techniques to investigate poloidal
flows in hot magnetized plasmas through the propagation properties of turbulent structures …

A supersonic helium beam diagnostic, based on the line-ratio technique for high resolution
electron density and temperature measurements in the plasma edge (r/a> 0.9) was …

The sensitivity of two numerical methods for the detection of zonal flows, especially geodesic
acoustic modes (GAMs), through the movement of turbulence eddies is studied. One of them …

This paper presents the first application of the autocorrelation-width technique (Bencze A
and Zoletnik S 2005 Phys. Plasmas 12 052323) to detect and characterize the …

Synthetic data describing coherent random fluctuations have widely been used to validate
numerical simulations against experimental observations or to examine the reliability of …

Time delay estimation (TDE) is a well-known technique to investigate poloidal flows in fusion
plasmas. The present work is an extension of the earlier works of Bencze and Zoletnik [Phys …