摘要
从Poisson方程及空间电荷限制流假设出发,推导了三种导体构形中相对论电子形成的空间电荷流密度的一般方程,给出了求解方法及解的基本特征、平板形阳极空间电荷限制流的具体表达式,研究了同轴圆筒形及共顶点同轴圆锥形导体空间电荷限制流关系表达式的极性效应、空间电荷密度及电场分布。
A generalized equation, which governs space charge current flow in three relativistic configurations, was derived from Poisson's equation with assumption of space-charge-limited flow. A method for solution to the equation was introduced and the characteristic of solution for the three configurations was discussed as well. It was found that the expressions of space-charge-limited flow for both the common-vertex-coaxial-circular-cones and coaxial cylindrical conductors have polarity effect, which results in different distribution of space charge and electrical stress from that of planar case.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2004年第3期404-408,共5页
High Power Laser and Particle Beams
基金
国防科技基础研究基金资助课题
关键词
空间电荷限制流
平板形
同轴圆筒
共顶点同轴圆锥
极性效应
Space-charge-limited flow
Planar conductor
Coaxial cylindrical conductor
Common-vertex-coaxial-circular-cones conductor
Polarity effect
