等离子体
物理
原子物理学
阳极
电子
汤姆逊散射
阴极射线
等离子体诊断
沟道等离子体
阴极
电场
等离子清洗
空间电荷
等离子体参数
电极
化学
核物理学
量子力学
物理化学
作者
Ya. E. Krasik,D. Yarmolich,J. Z. Gleizer,V. Vekselman,Yuval Hadas,V. Tz. Gurovich,J. Felsteiner
摘要
There is a continuous interest in research of electron sources which can be used for generation of uniform electron beams produced at E≤105 V/cm and duration ≤10−5 s. In this review, several types of plasma electron sources will be considered, namely, passive (metal ceramic, velvet and carbon fiber with and without CsI coating, and multicapillary and multislot cathodes) and active (ferroelectric and hollow anodes) plasma sources. The operation of passive sources is governed by the formation of flashover plasma whose parameters depend on the amplitude and rise time of the accelerating electric field. In the case of ferroelectric and hollow-anode plasma sources the plasma parameters are controlled by the driving pulse and discharge current, respectively. Using different time- and space-resolved electrical, optical, spectroscopical, Thomson scattering and x-ray diagnostics, the parameters of the plasma and generated electron beam were characterized.
科研通智能强力驱动
Strongly Powered by AbleSci AI