中文摘要：

提出了基于溶胶-凝胶（Sol-Gel）法制备掺铈石英闪烁光纤,将其作为辐射传感头,搭建了对伽马辐射敏感的光纤传感系统。通过改变溶胶-凝胶中铈元素掺杂浓度,分别拉制出Ce与Si的摩尔分数分别为0.14%和0.22%的闪烁石英光纤。利用137Cs伽马辐射源,研究了闪烁光纤涂覆层、铈元素掺杂浓度及闪烁光纤长度等参量对辐射传感特性的影响。

英文摘要：

Scintillating silica optical fibers are fabricated by using Sol- Gel method. Based on the fabricated scintillating fibers, a Gamma radiation fiber sensor system is set up. Through doping different concentrations of cerium（Ce） element in Sol-Gel material, two scintillating fibers are fabricated with the Ce and Si mole fraction of0.14% and 0.22%. By using a137 Cs Gamma radiation source, the dependences of the sensing properties on the fiber coating, Ce-doped concentration and fiber length are investigated and analyzed.