Interaction between a magnetic island and turbulence has been intensively studied in recent
years with advance of plasma diagnostics in various plasma experiment devices such as …

Recent J-TEXT research has highlighted the significance of the role that non-axisymmetric
magnetic perturbations, so called three-dimensional (3D) magnetic perturbation (MP) fields …

Over the past several years, high-β N experiments have been carried out on HL-2A. The
high-β N is realized using double transport barriers (DTBs) with hybrid scenarios. A …

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 …

The radial profiles of perpendicular flows in the presence of the $ m/n= 2/1$ magnetic island
were firstly measured in the HL-2A tokamak by hopping the work frequency of the Doppler …

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 …

We use beam tracing—implemented with a newly-written code, Scotty—and the reciprocity
theorem to derive a model for the linear backscattered power of the Doppler backscattering …

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 …

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 …

Doppler backscattering (DBS) was successfully previously used on the Globus-M tokamak.
The diagnostic was utilised in the form of either a single-frequency or a four-frequency dual …