质子碰撞电离氖原子的理论研究*

利用连续扭曲波方法（CDW）和初态程函近似-连续扭曲波方法（CDW-EIS）对质子碰撞电离氖原子 壳层随电离电子能量的单重和二重微分散射截面及总截面进行了计算，与实验数据进行了比较，详细分析了曲线结构，比较了模型之间的差异，研究了初态程函近似对单重和二重微分散射截面的影响，并对其内部碰撞电离机制进行了探讨.研究发现，初态程函近似对各壳层电离截面有较大影响，这种影响随着入射质子能量的增大而越来越小.

A theoretical study on collision ionization of Ne atom by proton *

The impact ionization 1s,2s and 2p shell of Ne atom by proton are investigated by using the continuum-distorted-wave (CDW) method and the method with the eikonal-initial-state (CDW-EIS) approximation. The single, double differential cross sections and total cross sections are obtained. The structures of the cross sections are analyzed and the influences of eikonal-initial-state on the cross sections are discussed. Moreover, compared with the experimental data, the structures of the cross sections and the physical natures of these structures are discussed in detail.It is found that the eikonal-initial-state has large effects and makes the cross sections decrease. The contributions of the eikonal-initial-state on the cross sections are less important with increasing of incident proton energy.