A5012854767- Magnetic confinement fusion research
- Fusion materials and technologies
- Laser-Plasma Interactions and Diagnostics
- Superconducting Materials and Applications
- Plasma Applications and Diagnostics
- Dust and Plasma Wave Phenomena
- Plasma Diagnostics and Applications
Southwest Jiaotong University
2023-2024
Abstract The evolutions of MHD instability behaviors and enhancement both electrostatic electromagnetic turbulence towards the plasma disruption have been clearly observed in HL-2A plasmas. Two types disruptive discharges investigated for similar equilibrium parameters: one with a distinct stage small central temperature collapse ( $$\sim$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 5–10%) around 1 millisecond before thermal quench (TQ), while...
A two-dimensional symmetric fluid model is established to study the influence of radio frequency (RF) wave driving on capacitively coupled plasma discharge. The relationship between and electron density obtained by solving energy balance equation. calculation results show that average first increases rapidly with increase in then gradually tends saturation at a threshold frequency. simulation also carried out, which provides similar results. Physical studies this phenomenon are conducted,...
Abstract Isotope effects have been investigated in Neutral Beam Injection (NBI) heated plasmas on the Large Helical Device with similar operational parameters between Hydrogen (H) and Deuterium (D) plasmas. Experimental results show that global energy confinement has no significant dependence isotope mass under discharge conditions nearly same heating power, line-averaged density ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:msub> <mml:mover>...
Avoiding the major disruption is of paramount importance in future reactor-level devices, for which understanding mechanism essential. In this work, MHD instabilities and related dynamic interactions during have been investigated ohmically heated plasmas HL-2A tokamak. It reported that interaction between a kind edge-oscillating-mode (EOM) perturbation rotating m/n = 2/1 tearing mode (TM) inside plasma plays an important role inducing locking subsequent disruption. The EOM oscillating...