摘要
电子等离子体在静磁场和静电场的束缚下,可以达到热平衡态。达到热平衡态的必要条件是电子等离子体的密度分布要满足泊松方程,且使得等离子体内的磁力线为等势线.同时,电子等离子具有柱体的形状,在任何部位不能扩展出它所在的磁通管.当磁场有不均匀性时,电子等离子体是不能达到热平衡态的,最终电子都将扩散到管壁.
An electron plasma may be in thermal equilibrium state under the confinement by electric and magnetic fields.The necessary conditions for the equilibrium state of the electron plasma require that the eleetron density distribution function of the plasma satisfies the Poisson's equation, and that magnetic field lines inside the plasma are equipotentials.The plasma has a cylindrical shape, which has no part expanding from the magnetic flux tube.When the magnetie field is nonunform, it is shown that the electron plasma has no equilibrium state, the all electrons are eventually lost to the wall.
出处
《深圳大学学报（理工版）》
EI
CAS
1992年第1期1-8,共8页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金
关键词
电子等离子体
泊松
束缚
热平衡
Electron Plasma
Equilibium State
Eleetron Liguid
Electron Solid
Poisson's Equation
