Positron or electron-atomcollision theory is a main and fundamental area of atomic and molecular physics.
正（负）电子与原子的碰撞理论是原子与分子物理主要的研究领域。
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The velocity distribution function of the electron gas is measured by using Franck-Hertz experiment instrument, and the dynamical process of collision between electron and argon atom is analyzed.
利用夫兰克-赫兹实验仪测量了电子气体的速度分布函数，并分析了电子与氩原子碰撞的动力学过程。
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A representative radial wave function of two electrons scattered in the collision of an electron with a hydrogen atom. (Image courtesy of National Energy Research Scientific Computing Center.)