Experimental research of spectrum characteristic of three kinds of polymer optical fiber under γ-ray irradiation
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1.
Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China;
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2.
College of Information Science and Engineering, Xinjiang University, Urumchi 830046, China
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Received Date:
2006-07-07
Accepted Date:
2006-10-27
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Abstract
In order to compare the irradiation damage difference of three polymer optical fiber(POF),by analyzing the physical and chemical changes of polymethylmethacrylate(PMMA),polystyrene(PS) and polycarbonate(PC) optical fiber under γ-ray irradiation and measuring the transmission rate of three POFs under different dose γ-ray irradiation,the quantitative irradiation damage results is given.Under lower dose 0.1kGy and 1kGy,the transmission curves of three kinds of POF are flat in the whole visible light range.When the irradiation dose is 5kGy and 10kGy,the three transmission rates have evident peak value in the different wavelength range.The high the dose is,the more evident the peak effect is,and transmission curves become fluctuating,moreover,the peak value wavelength move to longer wavelength.The results indicated that the radiaton damage of three kinds of POF was wavelength-dependent,which is good reference to applying POF in nuclear radiation environment.
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