Steady-State Plasmas in KT5D Magnetized Torus

【摘要】 <正> Steady-state plasma generated by electron cyclotron resonance(ECR)wave in theKT5D magnetized torus was studied using a fast high-resolution camera and Langmuir probes.It was found that both the discharge patterns taken by the camera and the plasma parametersmeasured by the probes were very sensitive to the working gas pressure and the magnetic config-uration of the torus both without and with vertical fields.There existed fast vertical motion ofthe plasma.Tentative discussion is presented about the observed phenomena such as the brightresonance layer at a high gas pressure and the wave absorption mechanism at a low pressure.Further explanations should be found.更多还原

【Abstract】 Steady-state plasma generated by electron cyclotron resonance(ECR)wave in the KT5D magnetized torus was studied using a fast high-resolution camera and Langmuir probes. It was found that both the discharge patterns taken by the camera and the plasma parameters measured by the probes were very sensitive to the working gas pressure and the magnetic config- uration of the torus both without and with vertical fields.There existed fast vertical motion of the plasma.Tentative discussion is presented about the observed phenomena such as the bright resonance layer at a high gas pressure and the wave absorption mechanism at a low pressure. Further explanations should be found.更多还原