Heavy ion beam probing (HIBP) is a unique diagnostics to study the core plasma potential
and turbulence. Advanced HIBPs operate in the T-10 tokamak and TJ-II flexible heliac with …

The development of reduced models provide efficient methods that can be used to perform
short term experimental data analysis or narrow down the parametric range of more …

TJ-II stellarator results on modelling and validation of plasma flow asymmetries due to on-
surface potential variations, plasma fuelling physics, Alfvén eigenmodes (AEs) control and …

Electric field Ε or electric potential φ plays a key role in the transport and turbulence of
toroidal plasmas. It is believed that mean radial E r suppresses the turbulence eddies via E× …

Geodesic acoustic modes, Alfvén eigenmodes, stationary and oscillating components of the
electric field, and their relations to plasma confinement have been studied. Theoretical …

In this paper, we analyze the impact of electron cyclotron resonance heating and electron
cyclotron current drive on the Alfvénic instabilities driven by neutral beam injection observed …

We study Alfvén eigenmodes (AEs) in the TJ-II heliac in hydrogen plasmas heated by
hydrogen co-field neutral beam injector. Taking advantage of the unique TJ-II flexibility in a …

The study of Alfvén eigenmodes (AEs) driven by fast particles in toroidal plasmas is of a
great importance for future fusion reactor with plasma, dominating by fusion alphas. The …

Alfvén eigenmodes (AEs) were studied in low magnetic shear flexible heliac TJ-II (B 0= 0.95
T, R 0= 1.5 m, $\langle a\rangle $= 0.22 m) neutral beam injection (NBI) heated plasmas (P …

Beam-driven Alfvén eigenmodes (AEs) have been studied in the TJ-II low-magnetic-shear
flexible heliac (B 0= 0.95 T,< R>= 1.5 m,< a>= 0.22 m), in L-mode hydrogen plasmas with …