摘要
本文叙述了在HL-1M中用激光吹气技术进行的金属杂质实验及杂质输运特性的研究。给出了真空紫外光谱(VUV)、可见光谱线辐射亮度和软X射线辐射强度随时间的演变。用杂质输运代码和实验数据进行了数值模拟,通过模拟曲线和测试波形的拟合,给出了等离子体杂质扩散系数D(r)和向内的对流速度V(r),用光谱辐射强度特征衰减时间得到了杂质约束时间τimp。
おaser blowoff technique has been used in the HL1M tokamak to study impurity transport and confinement. Impurity diffusion coefficient D(r) and inward convection velocity V(r) were obtained during ohmic, Lmode, biased limiter discharge and LHCD by simulating the time evolution of VUV line brightness. Impurity confinement times are obtained using the characteristic decay times of the spectral line intensity.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
1998年第A07期56-61,共6页
Nuclear Fusion and Plasma Physics
基金
国际原子能机构(IAEA)技术援助合作项目
关键词
等离子体
激光吹气
托卡马克
杂质输运
Plasma Laser blowoff Spectral radiation Soft Xray Impurity transport