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 …

Enhanced confinement is observed in neutral beam injector (NBI)-heated hydrogen
discharges made in the stellarator TJ-II after the injection of a single cryogenic fuel pellet into …

Abstract KNOSOS (KiNetic Orbit-averaging SOlver for Stellarators) is a freely available, open-
source code (https://github. com/joseluisvelasco/KNOSOS) that calculates neoclassical …

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 …

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 …

Stellarator research in the EUROfusion consortium focuses on optimized stellarators of the
HELIAS (Helical Axis Advanced Stellarator) line [1]. Wendelstein 7-X (W7-X) in Greifswald …

An improvement in confinement associated with the injection of pellets has been observed
in TJ-II and other devices. By means of a simple model, we study here the modification of …

Pellet injection into magnetic confinement plasma is widely employed for plasma fuelling
and impurity transport studies. While post-injection effects include changes in density and …

Infrared thermography has been used to study the fast ion impact areas in the Co and
Counter NBI ducts of TJ-II. Statistical results of the distribution of accumulated impacts on the …

Turbulence self-regulation mechanisms are widely believed to be partially governed by the
non-linear interplay between turbulence and large-scale plasma flows. In this paper, we …