论文标题
弱离子化等离子体中电子电子碰撞的扩散状态
Diffusion regime of electron-electron collisions in weakly ionized plasmas
论文作者
论文摘要
我们考虑了弱离子化的等离子体，其中电子在中性上的频繁弹性散射改变了单个行为和电子电子碰撞的速率。在这种情况下，电子热化的动力学与完全离子化的血浆中的动力学大不相同。由于中性散射的快速散射，碰撞电子扩散。我们证明了该扩散的适当说明如何使人们能够估计电子热化的特征时间。我们还通过使用基于liouville方程的多粒子分布函数的Bogolyubov方法对电子方程进行了严格的衍生化。
We consider weakly ionized plasma where frequent elastic scattering of electrons on neutrals change the individual acts and the rate of electron-electron collisions significantly. In this case, the kinetics of electron thermalization is very different from that in fully ionized plasma. The colliding electrons diffuse because of fast scattering on neutrals. We demonstrate how a proper account of this diffusion enables one to estimate the characteristic time of electron thermalization. We also present a rigorous derivation of the kinetic equation for electrons by using Bogolyubov method based on Liouville equations for multi-particle distribution functions.
