In this thesis, a continuum-distorted-wave eikonal-initial-state (CDW-EIS) approximation is developed to study the collision ionization processes, especially to investigate into the ionization mechanisms.

• 本文简要回顾了该领域的发展历程,简单说明并比较了各种理论方法,重点介绍了初态程函近似的连续扭曲波方法,利用该方法计算了重粒子碰撞电离过程的总截面、一阶和二阶微分截面,并着重讨论了各种电离机制。