FEB-E脱靶等离子体偏滤器的数值模拟  

DIGITAL SIMULATION OFTHEDETACHED DIVERTOR IN FEB-E

作　　者：朱毓坤[1] 周小兵[1] 黄锦华[1] 冯开明[1] 邓培智[1] 霍铁军[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1期8-12,共5页Nuclear Fusion and Plasma Physics

基　　金：:国家 8 63高技术课题!( 863- 614 - 0 3- 0 2 );自然科学基金!( 19685 0 0 7)

摘　　要：为了提高FEBE偏滤器的杂质控制和增加FEBE偏滤器处离子与中性气体的相互作用,用喷气和杂质注入的方法设计了动态气体靶偏滤器。高约束H模状态下的脱靶等离子体沿删削层(SOL)磁力线有大的辐射功率份额(50%～80%)和大的等离子体压力下降(90%)。偏滤器上等离子体压降系数用SOL的两点输运模型和辐射模型估算。结果显示,压降系数不仅与辐射功率份额有关,而且与SOL驻点密度紧密相连。In order to improve the impurity controland to increase the interaction of ions with neutralgasin FEB Edivertor,the dynamicgastargetdivertorisdesigned by meansofcom bination ofgaspuffing and impurity injection.The detached plasma isin a high confinementper formance H mode associated with both a large fraction of edge radiation power(50 %～ 80 % ) and a large drop in plasma pressure along the SOLopen field line (about90 % ) .The plasma pres sure drop factor on the divertorfpis estimated with the two point SOL transportmodeland the impurity radiation model.The simulation resultsshow thatthe plasma pressure drop factorisnot only related to the radiation fraction,butalso depends greatly on the stagnation pointdensity.

关 键 词：FEB-E偏滤器 喷气 脱靶等离子体 数值模拟 

分 类 号：O53[理学—等离子体物理]