A5048950677- Ionosphere and magnetosphere dynamics
- Magnetic confinement fusion research
- Fusion materials and technologies
- Laser-Plasma Interactions and Diagnostics
- Solar and Space Plasma Dynamics
- Dust and Plasma Wave Phenomena
- Earthquake Detection and Analysis
- Nonlinear Waves and Solitons
- Superconducting Materials and Applications
University of Science and Technology of China
2022-2024
Huazhong University of Science and Technology
2021-2022
Government College University, Lahore
2018
Abstract The effects of fusion-born alpha ( α ) particles on zonal flow (ZF) driven by collisionless trapped electron mode (CTEM) turbulence are analytically investigated, using gyrokinetic and bounce kinetic theories in the deuterium–tritium (D–T) tokamak plasmas. It is found that ZF growth rate increased because reduction polarization shielding as well enhancement CTEM instability. results this paper qualitatively consistent with level residual (Cho Hahm 2019 Nucl. Fusion 59 066026)....
Abstract We investigate analytically the effects of energetic particles (EPs) on instability density-gradient-driven collisionless trapped electron mode (CTEM) through linear gyrokinetic theory and bounce kinetic in tokamak plasmas. The EPs, including fusion-born alpha neutral-beam-injection-driven beam ions, CTEM are compared for dynamic model with slowing-down (SD) equivalent Maxwellian (EM) equilibrium EP distribution functions dilution model. It is found that long wavelength regime can...
Abstract The effects of alpha ( α ) particles on the transport helium ash driven by collisionless trapped electron mode (CTEM) turbulence are analytically studied using quasi-linear theory in tokamak deuterium (D) and tritium (T) plasmas. Under parameters used this work, is mainly determined diffusion due to very weak convection. It found that ratio between diffusivity effective thermal conductivity D He / χ eff CTEM turbulence, which a proper normalized parameter for quantifying efficiency...
Using a moving test charge approach in the magnetized electron ion plasma, shielding potential presence of an acoustic mode around has been studied using kinetic model incorporating quantization effects. Electron effects not only modify dielectric response function ion-acoustic waves but also affect Debye and wake field significantly. It is observed that factor enhances reduces potential. For practical applications, results have for astrophysical plasmas.
Abstract Following the reconstruction of TEXT tokamak at Huazhong University Science and Technology in China, renamed as J-TEXT, a plethora experimental theoretical investigations has been conducted to elucidate intricacies turbulent transport within configuration. These endeavors encompass not only J-TEXT device’s advancements but also delve into critical issues pertinent optimization future fusion devices reactors. The research includes topics on suppression turbulence, flow drive damping,...
A study of velocity distribution function in Earth's magnetosphere is conducted using high-resolution measurements from the Magnetospheric Multiscale Spacecraft (MMS). The analysis focuses on AZ-non-Maxwellian that a complex velocity-space structure, exhibiting power-law moments. By imposing constraints spectral indices AZ-velocity distribution, most suitable for modeling determined. combined use MMS data and provides new insights into behavior plasma particles space structures responsible...
In this paper, the influence of hydrogen (H+) band electromagnetic ion cyclotron (EMIC) waves on and helium velocity distributions has been studied. The EMIC have investigated in inner magnetosphere using magnetospheric multiscale mission. for frequency range typical frequently observed Earth's received considerable attention energy transport across magnetosphere. manuscript, we studied distribution cold/hot proton ions at different times event under consideration. For cold (1–600 eV) ions,...