摘要
在理论分析的基础上,模拟研究了微电真空太赫兹器件Clinotron。求解了色散方程,获得该器件的基本结构参数和性能参数;在考虑空间电荷场和电子回旋运动的情况下,得出能使器件内片状束稳定传输的周期永磁聚焦的磁场条件;利用3维全电磁粒子模拟程序对Clinotron进行了初步模拟以及优化。数值模拟结果表明:当输入电压为4.5kV、发射束流大小为190mA、输入电功率为855 W时,运行频率为218GHz的Clinotron的输出平均功率40W,功率转换效率达4.68%。
A THz-deviee, Clinotron, has been designed by theoretical analysis and numerical simulation. The parameters of its structrue and performance are obtained by solving the dispersion relation of the Clinotron. The conditions for stable sheet beams transport in periodic permanent magnet fields（PPM） are derived in consideration of space-charge field and cyclotron motion. The Clinotron is simulated and optimized by a three-dimensional PIC code. It gains an averaged output power of 40 W in a period and an efficiency of 4.68% at 218 GHz, when the input voltage is 4.5 kV, input current is 190 mA and the peck magnetic field of focusing PPM is 0.25 T.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2012年第4期993-997,共5页
High Power Laser and Particle Beams
基金
中国工程物理研究院预研项目(9090502-2)
中国工程物理研究院科学技术发展基金项目(2011B0402068)
