An Optical Fiber Sensor Based on La2O2S: Eu Scintillator for Detecting Ultraviolet Radiation in Real-Time

被引：15

作者：

Yan, Yongji ^{[1
]}

Zhang, Xu ^{[1
]}

Li, Haopeng ^{[1
]}

Ma, Yu ^{[1
]}

Xie, Tianci ^{[1
]}

Qin, Zhuang ^{[1
]}

Liu, Shuangqiang ^{[1
]}

Sun, Weimin ^{[1
]}

Lewis, Elfed ^{[2
]}

机构：

[1] Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China

[2] Univ Limerick, Opt Fiber Sensors Res Ctr, Limerick, Ireland

来源：

SENSORS | 2018年 / 18卷 / 11期

基金：

对外科技合作项目（国际科技项目）; 中国国家自然科学基金;

关键词：

ultraviolet optical fiber sensors; UV sensors; La2O2S: Eu scintillator; real-time UV sensors; CSI(TL) CRYSTALS; LUMINESCENCE;

D O I：

10.3390/s18113754

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel ultraviolet (UV) optical fiber sensor (UVOFS) based on the scintillating material La2O2S: Eu has been designed, tested, and its performance compared with other scintillating materials and other conventional UV detectors. The UVOFS is based on PMMA (polymethyl methacrylate) optical fiber which includes a scintillating material. Scintillating materials provide a unique opportunity to measure UV light intensity even in the presence of strong electromagnetic interference. Five scintillating materials were compared in order to select the most appropriate one for the UVOFS. The characteristics of the sensor are reported, including a highly linear response to radiation intensity, reproducibility, temperature response, and response time (to pulsed light) based on emission from a UV source (UV fluorescence tube) centered on a wavelength of 308 nm. A direct comparison with the commercially available semiconductor-based UV sensor proves the UVOFS of this investigation shows superior performance in terms of accuracy, long-term reliability, response time and linearity.

引用

页数：13

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