闪烁光纤在γ射线辐照下部分特性的蒙特卡罗模拟

 闪烁光纤在射线成像方面的应用越来越广泛。为了进一步了解闪烁光纤在射线辐照下的基本特性，基于蒙特卡罗方法，利用计算机模拟分析了γ射线在闪烁光纤中的好事例率与光纤长度及射线能量的关系，能量沉积效率与光纤长度及射线能量的关系。此项工作对于闪烁光纤阵列在射线成像，剂量场测量等方面的研究很有价值。

Characters of γ-ray irradiated scintillation optical fiber by simulation based on Monte Carlo method

Scintillation optical fiber is applied to ray imaging more and more widely. In order to know more about some characters of scintillation optical fiber under ray radiation，the article analyses the relationships between good event rate of γ-ray and fiber length and ray energy，and between energy deposition efficiency ofγ-ray and fiber length and ray energy by computer simulation based on Monte Carlo method.According to them ，we can conclude some important results. For example，the scintillation fiber s optimal length is about 10cm when applying it to imaging;its detecting efficiency is higher under low incident photons and lower under high incident photons. The work is very useful in the field of scintillation fiber imaging and dosage measurement