摘要
介绍了放射性核束弹性散射实验中测量的角分布进行归一化的方法。由于有限的测量角区及放射性核束有较大的发散度 ,采用了逐个事件计算的方法 ,在探测器空间分布区域用事先产生的一系列点构成的数据库模拟探测器边界 ,对这些点进行坐标转换 ,再进行选择判断 ,得到每个事件的几何探测效率。通过每个事件的几何探测效率推算到整个空间 ,得到实际的角分布。
A normalization method for experimentally measured angular distribution in elastic scattering experiment in which the radioactive ion beam was used as the projectile has been developed. Because of limited measurement area and bigger angular divergence of the radioactive ion beam, the event by event method is applied to calculate, simulate the geometrical efficiency in the detection area. using a datum base which makes up of dots created beforehand, transform the coordinates of these dots in the datum base, then choose and select them, get the geometrical detection efficiency of every event, and extrapolate to the all space by the geometrical detection efficiency of the every to get the real angular distribution.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2001年第3期161-164,共4页
Nuclear Electronics & Detection Technology
基金
中国科学院"百人计划"资助![1997]0 0 2 7
