摘要
设计了一个过模太赫兹返波管振荡器,通过对慢波结构的精心设计,使电子束动能得到充分提取,实现器件的大功率及高效率运行。在电子能量和束流分别为280keV和320A的条件下,当引导磁场强度为3T时,采用2.5维Particle in Cell(PIC)程序模拟得到频率为121.8GHz、功率为13MW的太赫兹波输出,器件的束波转换效率约为14.5%。
By elaborately designing the slow wave structure(SWS),an oversized terahertz backward wave oscillator(BWO)with high output power and high beam-wave conversion efficiency is presented and the 2.5-D particle-in-cell simulations are carried out using a PIC code.Under the condition of 280 kV voltage and 320 A current,the output power of 130 MW at frequency of 121.8 GHz is achieved when the strength of the guiding magnetic field is 3 T,and the beam-wave power efficiency of 14.5%is obtained.
作者
马乔生
张运俭
李正红
吴洋
Ma Qiaosheng;Zhang Yunjian;Li Zhenghong;Wu Yang(Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,Mianyang 621900,China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2016年第9期78-81,共4页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
关键词
大功率
太赫兹返波管
过模
谐振反射腔
半反射腔
high power
terahertz BWO
oversized mode
resonant reflector
quasi reflector
