电子回旋波Ohkawa机制电流驱动计算  

Current Drive Calculation Using Ohkawa Mechanism of Electron Cyclotron Wave

作　　者：邓盛 郑平卫[1,2] 何丽华[1] 黄千红[1] 龚学余[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]南华大学环境保护与安全工程学院,湖南衡阳421001

出　　处：《原子能科学技术》2017年第11期1921-1927,共7页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(11405082;11675073;11375085);科技部ITER专项资助项目(2015GB110002);湖南省教育厅一般项目资助(14C1001);湖南省核聚变与等离子体物理创新团队建设项目资助(NHXTD03);南华大学研究生科研创新项目资助(2016XCX19)

摘　　要：从电子回旋波电流驱动的机制出发,理论推导出了Boozer-Fisch电流与Ohkawa电流的计算表达式,并给出了具体的计算方法。数值模拟结果表明:电子回旋波的波功率沉积在托卡马克高场侧的离轴位置时,Ohkawa电流较小,Boozer-Fisch电流能达到较大值;波功率沉积在低场侧的离轴位置时,通过调整波参数,有效抑制Boozer-Fisch电流,能充分利用Ohkawa电流的优势使离轴驱动电流同样能达到较大值。Based on mechanism of current drive for electron cyclotron wave, the expres- sion of Boozer-Fisch current and Ohkawa current was derived theoretically, and the calculation method was given. It is shown that Boozer-Fisch current can reach a much larger value and Ohkawa current becomes very small if the power of electron cyclotron wave deposits off-axis on the high field side of Tokamak. Inversely, the Ohkawa current can be made full use to achieve greater value, which can be predominant compared to the Boozer-Fisch effect, by adjusting the parameters of electron cyclotron wave as the power deposits off-axis on the low field side.

关 键 词：电子回旋波电流驱动 离轴电流驱动 Ohkawa电流 Boozer-Fisch电流 

分 类 号：O532[理学—等离子体物理]