摘要
研究了离子通道回旋电子束脉塞(ICECM)中的等离子体波非线性效应。利用流体理论与自洽非线性理论方法对ICECM中等离子体波效应的微观机理进行了分析。研究发现,等离子体波加强了电子束的纵向群聚,束-波互作用的能量交换效率及系统增益得到明显提高。数值模拟计算表明,对于中等等离子体密度、1.5kA电流和1MV加速电压的电子束,系统能够获得的脉冲功率和频率分别为200MW和280GHz的毫米波束。
The plasma wave nonlinear effect of Ion-Channel Electron Cyclotron Maser (ICECM) is investigated. Using these methods of fluid theory and self nonlinear theory, the micro-mechanism in ICECM are analyzed. Studies find that the longitudinal focus is intensified and the beam-wave interact efficiency is remarkably increased. Numerical calculations show that, for middle ion density and the electron beam of 1.5 kA and 1 MV, the scattering wave frequency and the output power in ICECM system can achieve 280 GHz and 200 MW respectively.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2003年第3期262-266,共5页
High Power Laser and Particle Beams
基金
霍英东青年教师基金资助课题(81007)
