Particle Simulation of an Improved Axially Extracted Vircator  

作　　者：刘振祥 舒挺 张建德 钱宝良 

机构地区：[1]College of Science,National University of Defence Technology,Changsha 410073,China

出　　处：《Plasma Science and Technology》2003年第5期2007-2010,共4页等离子体科学和技术（英文版）

基　　金：The project supported by the National 863 Project of China (No. 2002AA834020)

摘　　要：An axially extracted virtual cathode oscillator (vircator) with a feedback annulus is proposed and configured through particle-in-cell (PIC) simulation in Ref. [1]. In this paper, the effects of the feedback mechanism are studied through PIC method. The simulated results indicate that the improved new vircator can increase the output power twice large than that of the axially-extracted conventional vircator under the same condition. On the other hand, it can narrow the bandwidth and purify the modes.An axially extracted virtual cathode oscillator (vircator) with a feedback annulus is proposed and configured through particle-in-cell (PIC) simulation in Ref. [1]. In this paper, the effects of the feedback mechanism are studied through PIC method. The simulated results indicate that the improved new vircator can increase the output power twice large than that of the axially-extracted conventional vircator under the same condition. On the other hand, it can narrow the bandwidth and purify the modes.

关 键 词：VIRCATOR FEEDBACK particle simulation 

分 类 号：O534.1[理学—等离子体物理]