Interaction between shear Alfvén wave (SAW) and energetic particles (EPs) is one of major
concerns in magnetically confined plasmas since it may lead to excitation of toroidal …

Recent progress towards an increased understanding of detached divertor physics has
been made with the highly closed divertor geometry in HL-2A. Non-intrinsic impurities were …

Influence of m / n = 2/1 magnetic islands on perpendicular flows and turbulence in HL-2A Ohmic
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By installing an X-mode polarized Q-band (32–56 GHz) reflectometry at the low field side on
EAST, the zero density cutoff layer was determined and the edge density profile was …

A novel 16-channel fixed frequency Doppler backward scattering (DBS) reflectometer
system has been developed on the HL-2A tokamak. This system is based on the filter-based …

Impurity seeding experiments in ELMy H-mode plasmas by using supersonic molecular
beam injection (SMBI) have been performed in the HL-2A tokamak. Besides pure impurity …

The evolutions of MHD instability behaviors and enhancement of both electrostatic and
electromagnetic turbulence towards the plasma disruption have been clearly observed in …

Improved energy confinement mode (I-mode) has been observed on the HL-2A tokamak.
The I-mode features an edge transport barrier (ETB) in electron temperature and a low …

Abstract Effect of impurity seeding on plasma global confinement has been investigated in H-
mode plasmas of the HL-2A tokamak. Metal and gas impurities can be externally seeded by …

A 32/64-channel charge exchange recombination spectroscopy (CXRS) diagnostic system
is developed on the HL-2A tokamak (R= 1.65 m, a= 0.4 m), monitoring plasma ion …