The large helical device (LHD) is one of the world's largest superconducting helical system
fusion-experiment devices. Since the start of experiments in 1998, LHD has extended its …

This paper is a broad overview and a summary of the recent progress achieved in Ion
Cyclotron Range of Frequency (ICRF) systems, experiments and modelling during the last …

Large Helical Device (LHD) is one of the world largest superconducting fusion experiment
devices, having demonstrated its inherent advantage for steady-state operation since the …

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 …

Sawtooth oscillations in tokamaks frequently lead to the redistribution of energetic ions,
mainly on passing orbits, causing their expulsion from the core. This paper discusses the …

The characteristics of ion cyclotron range of frequencies (ICRF) minority ion heating with a
hydrogen minority and deuterium majority plasma were studied by ICRF modulation …

Strong suppression of impurity accumulation is observed in long pulse hydrogen discharges
with high power NBI (neutral beam injection) heating (P nbi> 10 MW) on the large helical …

Mode conversion of fast waves in the ion cyclotron range of frequencies (ICRF) is known to
result in current drive and flow drive under optimised conditions, which may be utilized to …

Although ICRF heating has achieved the high heating efficiency necessary to achieve high-
performance plasmas, it has not overcome the reliability and economic problems associated …

Radial profiles of density ratio of helium to hydrogen ions are measured using the charge
exchange spectroscopy technique with the two-wavelength spectrometer system in the large …