%0 Journal Article
%T Analysis of ion noise with beam-wave interaction in klystron by two dimensional particle simulation method<br>考虑到束-波相互作用的速调管离子噪声二维模拟
%A Gong Hua-Rong
%A Gong Yu-Bin
%A Wei Yan-Yu
%A Tang Chang-Jian
%A Xue Dong-Hai
%A Wang Wen-Xiang
%A <br>巩华荣
%A 宫玉彬
%A 魏彦玉
%A 唐昌建
%A 薛东海
%A 王文祥
%J 物理学报
%D 2006
%I 
%X Ion noise in output signal of klystrons was obtained by particle-in-cell method. The interactions between beam electron, ion, secondary electron and electromagnetic field are illustrated. The mechanism of ion noise is analyzed. It shows that phase fluctuation in output signal is caused by the change of the beam current DC velocity which is affected by the change of the amount of ions. The ion interacts with beam electron and has no equilibration state. The amount of secondary electrons is small and it has little effect on ion noise, but its behaviors reflect the process of ion noise. The amplitude fluctuation of output signal is caused by the change of beam velocity and beam radius. It is also affected by the ion behaviors.
%K ion noise
%K klystron
%K particle simulation
%K electron beam<br>离子噪声
%K 速调管
%K 粒子模拟
%K 电子束
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=DF3BC587294A67D7&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=F3090AE9B60B7ED1&sid=A877E7E4C0B929CC&eid=3CBB29FD9CAC4CDC&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=19