Fiber-optic radiation sensor for detection of tritium

被引:15
作者
Jang, K. W. [1 ]
Cho, D. H. [1 ]
Yoo, W. J. [1 ]
Seo, J. K. [1 ]
Heo, J. Y. [1 ]
Park, J-Y [1 ]
Lee, B. [1 ]
机构
[1] Konkuk Univ, Res Inst Biomed Engn, Coll Biomed & Hlth Sci, Sch Biomed Engn, Chungju 380701, South Korea
关键词
Fiber-optic sensor; Tritium; Beta ray; Inorganic scintillator; Radiation detector;
D O I
10.1016/j.nima.2010.09.060
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The objective of this study is to develop the radiation sensor, which is composed of a scintillator, an optical fiber bundle and a light measuring device to detect the tritium in real-time. In this study, we have fabricated fiber-optic radiation sensors using inorganic scintillators and plastic optical fiber bundles. Each scintillator interacts with electron or beta ray and generates 455-550 nm wavelength of scintillation photons. An optical fiber bundle is usually made of plastic or glass, which is used to guide the light signal from a scintillating probe to light measuring device. For the purpose of selecting the best scintillator with a high efficiency, fiber-optic sensors manufactured using three kinds of inorganic scintillator such as Gd2O2S:Tb, Y3Al5O12:Ce and Csl:Tl, and they are tested with a metal hydride type of tritium source. In addition, the scintillation photons are measured as a function of distance between a fiber-optic sensor and source. Finally, we have measured the amounts of scintillation photon with different activities of tritium source and compared the measured results with those obtained using a surface activity monitor. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:928 / 931
页数:4
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