摘要
本文描述HL-1装置用脉冲送气控制等离子体密度的实验。其结果表明等离子体建立后工作气体的快速注入(即边缘加料)能提高等离子体密度,改善等离子体性能。在较好地控制装置放电条件后(主要是等离子体电流,位移和杂质控制),多脉冲或长脉冲补充送气能在较宽范围内(0.8—7.0×10^(19)·m^(-3))有效地控制等离子体密度及波形,装置稳定运行区域大为扩展。最后讨论了器壁再循环对密度控制的影响和送气的加料效率。
Experiment on control of plasma density with working gas puffing in the HL-1 tokamak is described. The result shows that after working gas injection,the density increases and plasma performance is improved. Under good discharge conditions (plasma current, displacement and impurity control) ,the multiple and long pulse gas puffing can control plasma density and waveform effectively in a wide regime (0.8-7.0× 1019m-3). The steady operation regime of density for the HL-1 tokamak has been expanded. The influence of wall recycling and fuelling efficiency of gas puffing are discussed.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
1991年第2期77-84,共8页
Nuclear Fusion and Plasma Physics
关键词
送气
等离子体
密度控制
加料
Gas puffing, density control, Fuelling efficiency, Wall recycling.
