ICRH天线发射谱n_(‖)对快波少数离子加热效果的影响  

Influence of the emission spectrum n_(‖) of ICRH antenna on the fast wave minority ion heating efficiency

作　　者：任玉虎[1] 龚学余[1,2] 杜丹[3] 李圣[1] 陈双粮[1] 任静[1] 

机构地区：[1]南华大学电气工程学院,衡阳421001 [2]南华大学核科学技术学院,衡阳421001 [3]南华大学数理学院,衡阳421001

出　　处：《核聚变与等离子体物理》2013年第2期121-126,共6页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助项目(11075073;11205086);高等学校博士学科点专项科研基金资助项目(20114324110001);湖南省研究生创新项目(CX2012B379)

摘　　要：采用等离子体分层模型,利用WKB近似研究了离子回旋共振加热(ICRH)天线发射谱n‖对离子回旋波在托卡马克等离子体的表面功率反射系数、吸收衰减的影响,数值模拟了不同天线发射谱n‖条件下快波少数离子加热的效果。模拟结果表明,当其它实验参数一定时,ICRH天线发射合适的n‖能提高天线与等离子体的耦合效率,增强少数离子加热的效果。The relation of the power reflection coefficient in tokamak plasma surface and absorption attenuation of the ion cyclotron wave to the emission spectrum n││ of ICRH antenna is studied by using a stratified plasma slab and the WKB approximation. The effect of fast wave minority ion heating in different emission spectrum conditions of ICRH antenna is numerical calculated. The simulation results show that under the same conditions, the coupling efficiency of the antenna with the plasma and the effect of fast wave minority ions heating can be improved and enhanced by suitable spectrum n││ of ICRH antenna.

关 键 词：等离子体分层模型 离子回旋共振加热 吸收衰减系数 等离子体表面功率反射系数 

分 类 号：O532[理学—等离子体物理]