HL-1M装置锁模不稳定性研究  

STUDY OF LOCKED MODE INSTABILITY IN THE HL 1M TOKAMAK

作　　者：严龙文[1] 杨青巍[1] 钱俊[1] 郭干城[1] 张锦华[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2000年第4期193-197,共5页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金项目! (19885 0 0 4)

摘　　要：研究了 HL - 1M装置上锁模不稳定性和密度极限破裂。锁模不稳定性通常出现在低密度的实验中 ,在软 X射线和 Mirnov磁扰动上都观察到了频率相同的先兆振荡 ,其时间尺度为10 ms。边缘温度的突然下降是产生锁模不稳定性的重要标志。锁模出现几毫秒后时常发生大破裂。Locked mode instability and density limit disruption have been studied in the HL 1M tokamak. Locked mode instability often appears in discharges with low density. Both precursors on the soft X ray and the Mirnov perturbation have same frequency and a time scale of 10ms. The drop of edge temperature is an important feature of appearance of the locked mode instability. Major disruption often takes place in a few milliseconds after mode locking. Some suggestions to suppress locked mode instability are proposed.

关 键 词：锁模不稳定性 密度极限 大破裂 HL-1M装置 

分 类 号：TL631.24[核科学技术—核技术及应用] TL612.2