基于闪烁光纤的低剂量率长距离辐射传感研究

摘要

Alow-dose-rate and distributed monitoring system of radioactive source based on scintillating fiber-shave been proposed to overcome the shortcomings of current typical radiation sensors, which have a small detection range. Firstly, based on the principle ofscintillation optical fiber for radiation sensing, the construc-tion of experimental and some related experiments have been carried out. On the basis of validating the feasi-bility of the experimental system, a scheme of linking scintillation fiber with transmission optical fiber is put forward, which is expected to be applied to realize low dose rate artificial radionuclide sensing in wide area marine waters.%针对当前传统的辐射传感器低剂量率条件下探测范围小、位置分辨率低的现状,提出并研究了一套基于塑料闪烁光纤的低剂量率长距离辐射传感实验系统.基于闪烁光纤辐射传感原理,搭建了低剂量率传感实验系统并进行了相关实验研究.在验证该实验系统可行的基础上,提出了闪烁光纤与传输光纤相连接的方案,有望应用于实现广域海洋水体低剂量率人工放射性核素传感.