PIC Simulation And Optimize Design Of Plasma-Assisted Slow-wave Oscillator

Plasma-Assisted slow-wave Oscillator is the kernel part of new and high power microwave source,and that high power microwave source is the kernel parts of the generic high power microwave system include that source and transmitted system etc.and is the foundation of successful application of high power microwave. In this dissertation starting off from linearity theory foundation,PIC simulation in the th plasma-assisted slow-wave Oscillator by MAGIC program;By change ditTerent particle parameter as the density of plasma.. voltage of electron beam.. current of electron beam etc.we compare interaction efficency.afterward we optimize design the SWS structure ,finally we can gained one relatively rational structure measure and particle parameter. The first is the preface,in which research actuality of high power microwave technology part and development status of PASOTRON are summarized,The structure and theory of PASOTRON are briefed. In chapter II theroretical derivation and numerical calculation of dispersion relation and linear growth rate in unmagnetized plasma-filled BWO is presented for linear model. afterward carrying though dispersive speciality experiment of one slow-wave structure that have processed now,and we compare the experiment result with theoryresult,find them inosculate relatively fine,offer some parameter for PLC simulation of chapter IV and V. At the first,we introduce the method of PLC simulation and MAGIC program,then briefly introduce the thought of simulation about SWS structure by MAGIC in chapter LII. Chapter IV is the PlC simulation of PASOTRON by MAGIC,and discuss the result of simulation,at the same time we discuss the effects of plasma density,voltage of electron beam,current of electron beam on the growth rate and output power. Chapter V is optimize design of PASOTRON .We mostly optimize from two aspect of structure dimension and particle parameter. Chapter VI is the conclusion.Primary content and the harvest of the dissertation are summarized.