Study of plasma-Wall Interactions in Divertor Simulator

(1)偏滤器等离子体模拟器中靶板等离子体热流的控制等离子体分离密度阈值的确定获得分离等离子体密度阈值的实验和分析结果。分离等离子体中电子能量损失通道的存在，使分离等离子体中电子能量损失通道的存在成为可能。分离等离子体中电子能量损失过程的清晰观测可见连续谱线以及一系列He Balmer谱线表明，分离重组等离子体中的电子能量损失通道的存在，使分离重组等离子体中的电子能量损失通道的存在成为可能。通过调制放电电流获得了电子温度随时间的变化。热<-4.5>电子和二次电子发射对靶板等离子体热流的影响靶板的热电子和二次电子发射抑制了鞘层电压，增强了靶板的等离子体热流（2）等离子体分离的二维流体模拟（3）偏滤器模拟器中的离子回旋波加热

(1) Control of Plasma Heat Flow to Target Plate in Divertor Plasma Simulators.Finding of Density Threshold for Plasma DetachmentExperimental and analytical finding of density threshold to obtain a detached plasma. The reason comes from the electron energy loss channel through the e-i energy exchange.Clear Observation of Recombination Process in Detached PlasmasVisible continuum as well as a series of He Balmer spectral lines shows consistently a partial local thermoequilibrium with the plasma temperature of 0.1-0.3eV for detached recombining plasmas.Demonstration of Recombination-dependent partial Flux to the TargetTemporal change in electron temperature has been obtained by the modulated discharge current. The particle flux to the target was found to be very sensitively dependent of T_e on the recombinations rate proportional to T_e^<-4.5>.Effect of Thermo-and Secondary Electron Emissions to Plasma Heat Flow to the TargetThe suppression of the sheath voltage and the enhancement of the plasma heat flow to the target plate are clearly found due to the thermo-and secondary electron emission form the plate(2) 2D Fluid Simulation on the Plasma Detachment(3) Ion Cyclotron Wave Heating in the Divertor Simulator