Under the ambitious EUROfusion mission of “bringing the stellarator line to technological
maturity”, the development of a Dual Coolant Lithium–Lead (DCLL) Breeding Blanket (BB) …

An innovative winding method is developed by connecting high-temperature
superconducting (HTS) conductors to enable efficient construction of a magnet system for …

High-power negative and positive ion-based neutral beam injectors (NBIs) are operated with
high reliability in the Large Helical Device (LHD). The total injection power is> 20 MW, and …

We have newly developed a large-scale equilibrium database for real-time magnetic
coordinate mapping system in the Large Helical Device. Thousands of free-boundary …

It is found that the remnant island structure created by n/m= 1/1 resonant magnetic
perturbation field in the stochastic magnetic boundary of the Large Helical Device (LHD)[A …

The physical understanding of net-current-free helical plasmas has progressed in the Large
Helical Device (LHD) since the last Fusion Energy Conference in Geneva, 2008. The …

In the vacuum of the Large Helical Device (LHD), we can change the plasma volume, the
aspect ratio, the ellipticity, the rotational transform, and the height of the magnetic hill …

The LHD-type helical fusion reactor FFHR has been studied to realize steady-state fusion
power generation without a need for current drive and free from disruption. The conceptual …

General properties of anisotropic plasma equilibrium in tokamaks and stellarators are
considered within the approach allowing explicit analytical evaluation of the equilibrium …

The first review is presented for the recent stellarator designs of FFHR, HSR, ARIES-CS,
which are based on the experimental device projects of LHD, W-7X, NCSX, respectively …