请帮我翻译下这段英语（人工翻译）

题目

请帮我翻译下这段英语（人工翻译）
A typical scattering experiment involves a beam with many incident particles all with the same kinetic energy. The coordinate system is shown in Figure 5.7. The incident particles come from the left with an initial velocity v in the +x direction. We take the center of the beam and the center of the target to be on the x-axis. The impact parameter b is the perpendicular distance from the initial trajectory to a parallel line through the center of the target (see Figure 5.7). We assume that the width of the beam is larger than the size of the target. The target contains many scattering centers, but for calculational purposes, we may consider scattering off only one particle if the target is sufficiently thin.

答案

一个典型的散射实验涉及到含有很多带有相同动能的入射粒子的光束.坐标系在图5.7中.入射粒子来自左侧,有从+X方向的初始速度V.我们把光束的中心和目标的中心放在X轴上.撞击参数b是从初始轨迹到目标中心平行线之间的垂...