This paper reviews measurements of edge plasma turbulence in toroidal magnetic fusion
devices with an emphasis on recent results in tokamaks. The dominant feature of edge …

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 …

The lithium beam emission spectroscopy (Li-BES) is a powerful diagnostic to resolve the
plasma edge density with high temporal and spatial resolution. The recent upgrades of the …

An avalanche photodiode based (APD) detector for the visible wavelength range was
developed for low light level, high frequency beam emission spectroscopy (BES) …

The COMPASS tokamak, a divertor device with clear H-mode and ITER-relevant geometry,
has been re-installed in IPP Prague after its transport from CCFE in UK. The first plasma was …

A diagnostic instrument is described for the Experimental Advanced Superconducting
Tokamak (EAST) for the measurement of the edge plasma electron density profile and …

The lithium beam diagnostic at ASDEX Upgrade routinely delivers electron density profiles
in the plasma edge by lithium beam impact excitation spectroscopy. An accurate …

A 60 keV neutral lithium beam system was designed and built up for beam emission
spectroscopy measurement of edge plasma on the KSTAR and EAST tokamaks. The …

Diagnosing the density profile at the edge of high temperature fusion plasmas by an
accelerated lithium beam is a known technique since decades. By knowledge of the relevant …

A novel beam emission spectroscopy observation system was designed, built, and installed
onto the Korea Superconducting Tokamak Advanced Research tokamak. The system is …