| PMMA光纤辐照特性研究 |
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| 引用本文： | 葛文萍. PMMA光纤辐照特性研究[J]. 光子学报, 2005, 34(10): 1573-1576 |
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| 作者姓名： | 葛文萍 |
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| 作者单位： | [1]新疆大学信息科学与工程学院,乌鲁木齐830046 [2]中科院西安光学精密机械研究所光纤与集成光学室,西安710068 |
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| 摘 要： | 分析了聚合物光纤在辐照环境下的物理化学变化，实验研究了聚甲基丙烯酸甲脂（PMMA）光纤在不同剂量的γ射线辐照下的辐照损伤和恢复特性，测量了PMMA光纤在可见光波段的辐照光谱和恢复光谱以及在638 nm的辐照前后透过率及辐照损伤.测量结果表明，光纤的辐照损伤和恢复都有波长相关性，辐照剂量低于5 kGy，PMMA光纤在整个可见光波段的辐照损伤情况差别不大，辐照剂量超过5 kGy，PMMA光纤在400 nm~550 nm波段的辐照损伤比600 nm~800 nm的辐照损伤要严重.
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| 关 键 词： | 聚合物光纤 辐照损伤 透射光谱 |
| 收稿时间： | 2005-02-24 |
| 修稿时间： | 2005-02-24 |
Investigation on Characteristic of PMMA Optical Fiber Under Irradiation |
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| Ge Wenping,. Investigation on Characteristic of PMMA Optical Fiber Under Irradiation[J]. Acta Photonica Sinica, 2005, 34(10): 1573-1576 |
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| Authors: | Ge Wenping |
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| Affiliation: | (1 College of Information science and engineering, Xinjiang University, Urumchi 830046)
(2 Xi′an Institute of Optics and Precision Mechanics, Academia Sinica, Xi′an 710068) |
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| Abstract: | The physical and chemical characteristics change of polymer under irradiation environment was analyzed. The irradiation damage and recovery property for polymethylmethacrylate (PMMA) optical fiber under γ-ray irradiation were researched experimentally. The visible light transmission spectrum and recovery property of the POF under different irradiation dose were measured. Under different irradiation dose the light transmission rate was reduced by different ratio. The measured spectrum indicated that the POF irradiation damage and recovery were dependent on wavelength, and the visible light transmission rate of the POF at the range of 400 nm to 550 nm comparing 600 nm to 800 nm, decreased seriously under the irradiation dose exceeded 5 kGy. But under lower dose below 1 kGy, the transmission rate decreased identical at the whole visible light range. |
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| Keywords: | Polymer optical fiber Irradiation damage Transmission spectrum |
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