摘要
利用无箔空心石墨阴极和0.65T的脉冲引导磁场,从Sinus加速器二极管引出了电压约750kV、电流约8.6kA、脉宽40ns的环形电子束,经过输入腔和中间腔间隙调制后,得到了7kA/43ns的基波调制电流,经过输出腔间隙后,得到了2.1GW/15ns的最大微波输出功率,束波转换效率33%,最高增益为40dB,并发现脉冲缩短现象。
This paper presents experimental results on an L-band relativistic klystron amplifier in Sinus-700 accelerator. It includes the modulation of intense relativistic electron beam(IREB) after driving through gaps of the input-cavity and the idler cavity, and microwave extraction from the modulated IREB. Annular electron beams of voltage 750kV, current 8.6kA, diameter 57mm, thickness 2mm were produced from annular foilless diode, and 2.1GW/15ns,1.7GW/18ns,0.75GW/30ns output peak microwave power were observed after three cavities,respectively. The efficiency is 14%～33%, and the gain is about 32～40dB.At the same time, microwave pulse-shortening was found in experiment..
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2004年第10期1291-1294,共4页
High Power Laser and Particle Beams
基金
国家863计划项目资助课题
中国工程物理研究院基金资助课题(2002434)
关键词
相对论速调管放大器
强流短脉冲
强流相对论电子束
脉冲缩短
高功率微波
Relativistic klystron amplifier
Intense-beam short pulse
Intense relativistic electron beam
Modulation of electron beam
Pulse shortening
High power microwave
