气体裂变产物的动态计算方法

Dynamic calculation of gas fission products

与利用导出公式得出裂变产物核数目随时间的变化关系不同,本文从放射性的几率衰变规律出发,对已知初始状态的衰变链,将时间推移矢量分为若干时间微元,在每一个时间微元以上一个时间微元为基础使用计算机程序计算衰变链上每个核素的动态数目,直至计算到目标时间点。最后模拟化学取样和物理测量的实际过程,得出一个可用于裂变发生数诊断的计算过程。

Other than obtaining the quantity of gas fission products by a deduced formula, the dynamic calculation is derived on the basis of the probability decay law. The differential of the time variable is considered and the change trend of the quantity of the nuclei is understood by calculating the variation in every tiny time fraction. Thus a calculation method of fission quantity is developed by simulating chemical sampling and physical measurement.