| 闪烁光激励下大芯径阶跃光纤系统的时间响应研究 |
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| 引用本文： | 张美,王奎禄,魏福利,邱孟通,彭博栋,袁媛,王培伟. 闪烁光激励下大芯径阶跃光纤系统的时间响应研究[J]. 强激光与粒子束, 2009, 21(3) |
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| 作者姓名： | 张美 王奎禄 魏福利 邱孟通 彭博栋 袁媛 王培伟 |
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| 作者单位： | 西北核技术研究所,西安,710024;西北核技术研究所,西安,710024;西北核技术研究所,西安,710024;西北核技术研究所,西安,710024;西北核技术研究所,西安,710024;西北核技术研究所,西安,710024;西北核技术研究所,西安,710024 |
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| 基金项目： | 西北核技术研究所预研基金 |
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| 摘 要： | 引入材料色散和漏泄模式光线的传输效应，对D. Gloge多模光纤脉冲响应公式进行修正，利用修正后公式数值计算了在闪烁光激励下纤芯半径为0.1 mm、长50 m的石英阶跃光纤的冲击响应波形，该波形近似一高斯函数，半高宽为3 ns,前沿比后沿慢0.8 ns，且后沿存在拖尾。用该响应波形通过数值方法得到了闪烁体-光纤系统时间响应波形，与实验结果相比较，两者基本吻合。
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| 关 键 词： | 大芯径阶跃光纤 光纤冲击响应函数 漏泄模式光线 闪烁体-光纤无源探测系统 |
| 收稿时间： | 1900-01-01; |
Time response of large-core step-index fiber transmission system with scintillator illumination |
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| Zhang Mei,Wang Kuilu,Wei Fuli,Qiu Mengtong,Peng Bodong,Yuan Yuan,Wang Peiwei. Time response of large-core step-index fiber transmission system with scintillator illumination[J]. High Power Laser and Particle Beams, 2009, 21(3) |
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| Authors: | Zhang Mei Wang Kuilu Wei Fuli Qiu Mengtong Peng Bodong Yuan Yuan Wang Peiwei |
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| Affiliation: | Northwest Institute of Nuclear Technology, P. O. Box 69-9, Xi’an 710024, China |
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| Abstract: | Considering material dispersion and tunneling ray, the D.Gloge’s theory formula of time response of multimode step-index fiber is modified. The modified formula is used to calculate the function of time response of 50 m long, 0.2 mm core diameter step-index fiber with scintillator illumination. Results show that it is near a Gaussian distribution with FWHM 3.0 ns, the pulse risetime is more than the falling time and the falling time has a trailing.Time response of scintillator-fiber system is modeled by numerical method, the results of modeling accords with experimental results. |
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| Keywords: | time response of fiber tunneling ray scintillator-fiber passive detector system |
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