In order to calculate the coulomb potential scattering, the path integral is investiged in momentum space. 在合理的近似下,通过在动量表象中计算路径积分,较为方便地求出了库仑散射的相移表达式。
New methods of measurements of specimen thickness and non-elastically scattering mean free path are proposed based on the electron holograph combining with electron dynamic diffraction. 而且,在电子全息照片和电子动力衍射相结合的基础上我们提出了一种测量电镜样品厚度和样品非弹性散射自由程的新方法。
A high optical density and narrow bandwidth holographic filter was made in order to reject the Rayleigh scattering. The optical path of excitation and collecting were designed carefully. 本文设计并制作了光学密度高、带宽窄的全息滤光片,达到了滤除瑞利散射光的目的;对激发光源、激发光路、收集光路精心设计,提高信噪比。
As he was scattering the seed, some fell along the path, and the birds came and ate it up. 撒种的时候,有落在路旁的,飞鸟来吃尽了。
Study on Stimulated Rotational Raman Scattering of High-power Laser Beams in Long Air Path 强激光在空气长程传输的受激旋转拉曼散射效应研究