Experimental research on radiation induced changes of polymer optical fiber under gamma-ray irradiation

被引：0
|
作者：
Ge Wenping [1 ,2 ]
Tian WeiJian [2 ]
Jia Zhenhong [1 ]
Wang Yaoxiang [2 ]
机构：
[1] Xinjiang Univ, Coll Informat Sci & Engn, Urumqi 830046, Peoples R China
[2] Acad Sinica, Xian Inst Opt & Precis Mech, Xian 710068, Peoples R China
来源：
NANOPHOTONICS AND MACROPHOTONICS FOR SPACE ENVIRONMENTS | 2007年 / 6713卷
关键词：
polymer optical fiber; irradiation damage; irradiation cross-link; irradiation degradation; transmission rate; irradiation recovery;
D O I：
10.1117/12.736339
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Under the high energy irradiation, the charges (even little) of molecules of polymer can cause the physical and chemical characteristics evident changes of polymer. The physics and chemical mechanisms which are responsible for radiation induced loss was analyzed. The radiation damage of polymethylmethacrylate(PMMA), Polystyrene PS and polycarbonate (PC) optical fiber under x-ray irradiation was researched experimentally. The visible light transmission of the POF under different irradiation dose was measured. The results indicated that the radiation damage of three kinds of POF was wave length-dependent. Under lower dose below 1 KGy, the transmission rate decreased identical in the whole visible light range. When the irradiation dose exceeded 5KGy, the transmission rate reduced obviously. and the recovery indicated that the visible light transmission rate of the POF in the range of 400nm to 500nm comparing with 600nm to 800nm, decreased seriously under the irradiation dose exceeded 5kGy. The transmission rate of both PMMA and PC have an evident peak value at the range 550nm-650m, and that of PS has a wide band at the range 500-700nm. We also measured the recovery of three kinds of POF under different irradiation dose by measuring several times the POF after stopping irradiating.
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页数：8
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