A STUDY ON FREQUENCY STABILITIES OF MICROWAVE EMISSION FROM A REFLEX TRIODE VIRCATOR

摘要：

This paper presents experimental investigations on a reflex triode vircator driven by a 400 kV, 10 kA electron beam. Two types of cold cathodes, based on stainless steel and carbon fiber, were tested in this system. The microwave signals were discussed by time-frequency analysis. The stainless steel cathode exhibited an obvious frequency hopping observed from the microwave pulse.Interestingly, for the carbon fiber cathode, the microwave emission with a stable frequency was observed, and possible explanations for the nature behind these experimental results are given. As a whole, carbon fiber cathodes have great promise as cold cathode emitters for high-power microwave generation.

作者: Limin Li Lie Liu Jianchun Wen Jun Zhan Yonggui Liu Jing Liu

作者单位: College of Photoelectric Science and Engineering,National University of Defense Technology,Changsha 410073,Peoples Republic of China

会议类型: 国际会议

会议名称: 17th International Conference on High-Power Particle Beams(第17届高功率离子束国际会议)

会议地点: 西安

会议语种:英文

页码: 572-575

在线出版日期: 2008-07-06（万方平台首次上网日期，不代表论文的发表时间）