Fibre Bragg gratings as high dose radiation sensors?

被引：1
|
作者：
Krebber, K [1 ]
Henschel, H [1 ]
Weinand, U [1 ]
机构：
[1] Fraunhofer INT, D-53879 Euskirchen, Germany
来源：
17TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2 | 2005年 / 5855卷
关键词：
fibre Bragg gratings; radiation effects; gamma radiation; fibre sensors; radiation sensors; radiation dosimetry;
D O I：
10.1117/12.623698
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have measured for the first time the shift of the Bragg wavelength and other parameters of fibre Bragg gratings (FBGs) exposed to gamma-radiation at different wavelengths up to a dose of 100 kGy. The results show that the FBG sensitivity to radiation increases from 820 nm to 1516 nm so that FBGs with higher Bragg wavelength, e.g. 1.55 mu m, are good candidates for high dose radiation sensing: no saturation was observed up to 100 kGy and the measured wavelength shift was fairly independent on the radiation dose rate.
引用
收藏
页码：176 / 179
页数：4
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