Study of Plasma MHD Equilibrium in HL-2A Tokamak  

作　　者：何宏达 张锦华 董家齐 李强 

机构地区：[1]Southwestern Institute of Physics,Chengdu 610041,China

出　　处：《Plasma Science and Technology》2006年第4期397-401,共5页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (No.10135020);the Sichuan Provincial Youth Foundation for Science and Technology (No.04ZQ026-032)

摘　　要：EFIT（Equilibrium Fitting） code is successfully transplanted for HL-2A tokamak parameters. The evolution of the equilibrium configurations for shot 2898 is simulated. It is shown that the discharge starts with a limiter configuration and develops into a divertor configuration gradually after t = 200 ms. The latter lasts until the end of the discharge at t = 900 ms. The evolution of the major plasma shape parameters such as the boundary magnetic fluxes, the positions of the x-point and magnetic axis, and the minor radii obtained are calculated and compared with the experimental results. The agreement between the simulation and experiments are shown to be reasonable. The possibility for discharge quality improvement is discussed.EFIT（Equilibrium Fitting） code is successfully transplanted for HL-2A tokamak parameters. The evolution of the equilibrium configurations for shot 2898 is simulated. It is shown that the discharge starts with a limiter configuration and develops into a divertor configuration gradually after t = 200 ms. The latter lasts until the end of the discharge at t = 900 ms. The evolution of the major plasma shape parameters such as the boundary magnetic fluxes, the positions of the x-point and magnetic axis, and the minor radii obtained are calculated and compared with the experimental results. The agreement between the simulation and experiments are shown to be reasonable. The possibility for discharge quality improvement is discussed.

关 键 词：simulations EQUILIBRIUM HL-2A tokamak 

分 类 号：O53[理学—等离子体物理]