An overview is given of physics differences between stellarators and tokamaks, including
magnetohydrodynamic equilibrium, stability, fast-ion physics, plasma rotation, neoclassical …

This paper compares the essential divertor transport features of the poloidal divertor, which
is well developed for tokamaks, and the non-axisymmetric divertors currently investigated on …

Edge impurity transport has been investigated in the stochastic layer of the Large Helical
Device (LHD) and the scrape-off layer (SOL) of the Huan Liuqi-2A (HL-2A) tokamak, as a …

The behavior of impurities in the Large Helical Device (LHD) is reviewed based on the
knowledge acquired since LHD experiments started in 1998. As a result, a consistent …

An extended mesh system for EMC3‐EIRENE has been developed to simulate peripheral
plasma including the ergodic and the divertor leg regions of LHD. Both the open and the …

Fluid transport modeling in three-dimensional boundaries of toroidal confinement devices is
reviewed with the emphasis on a Monte-Carlo approach to simulate detached plasmas. The …

Abstract In the Large Helical Device (LHD) operated with a metallic (stainless steel) first wall,
it is found that the iron density, n Fe, at the plasma core is fairly low (n Fe⩽ 10 8 cm− 3) in …

This paper assesses the three-dimensional (3D) effects of the edge magnetic field structure
on divertor/scrape-off layer transport, based on an inter-machine comparison of …

In the last decade, Coherence Imaging Spectroscopy (CIS) has shown distinctive results in
measuring ion flow velocities in the edge of magnetically confined plasma devices. Its 2D …

Impurity seeding to reduce the divertor heat load was conducted in the large helical device
(LHD) using neon (Ne) and krypton (Kr) puffing. Radiation enhancement and reduction of …