中国激光, 2015, 42 (3): 0305006, 网络出版: 2015-02-06
掺铈石英闪烁光纤的伽马传感特性研究
Gamma Sensing Characterization of Cerium-Doped Silica Scintillating Fiber
光纤光学 光纤传感 掺铈光纤 伽马辐射 溶胶-凝胶法 fiber optics optical fiber sensing Ce-doped fiber Gamma radiation Sol-Gel method
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。
Abstract
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 of 0.14% and 0.22%. By using a 137Cs Gamma radiation source, the dependences of the sensing properties on the fiber coating, Ce-doped concentration and fiber length are investigated and analyzed.
林施扬, 郭强, 庞拂飞, 陈振宜, 王廷云. 掺铈石英闪烁光纤的伽马传感特性研究[J]. 中国激光, 2015, 42(3): 0305006. Lin Shiyang, Guo Qiang, Pang Fufei, Chen Zhenyi, Wang Tingyun. Gamma Sensing Characterization of Cerium-Doped Silica Scintillating Fiber[J]. Chinese Journal of Lasers, 2015, 42(3): 0305006.
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