In this paper, the theory of collisional and turbulent transport of impurities in tokamak
plasmas is reviewed. The results are presented with the aim of providing at the same time a …

Future fusion reactors require a safe, steady state divertor operation. The required detached
operation is, in tokamaks with metal walls, usually achieved by seeding of impurities, such …

Based on particle and energy balances, a reduced model is derived for the physical
mechanisms leading to the occurrence of stable and unstable X-point radiators (XPRs), the …

One critical issue in steady-state and high-performance operation in future tokamak fusion
reactors is to develop H-mode operational regimes that mitigate or eliminate the large …

Integrated edge-localized-mode (ELM)-free or small ELM scenarios for the demonstration
fusion power plant (DEMO) are investigated in ASDEX Upgrade using argon seeding for …

The exhaust of excessively high heat and particle fluxes on the divertor target is crucial for
EAST long-pulse operation. In the recent EAST experiments, stable partial energy …

One of our grand challenges towards fusion energy is the achievement of a high-
performance plasma core coupled to a boundary solution. The high confinement mode (H …

Experiments at DIII-D and EAST have demonstrated simultaneous high confinement,
divertor detachment, and active control of detachment level, all of which are required for …

Since the last IAEA-Fusion Energy Conference, the Experimental Advanced
Superconducting Tokamak (EAST) research program has been, in support of ITER and …

In magnetic confinement thermonuclear fusion the exhaust of heat and particles from the
core remains a major challenge. Heat and particles leaving the core are transported via …