航天用光纤抗辐照特性研究

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1、上海交通大学硕士学位论文航天用光纤抗辐照特性研究姓名：张無申请学位级别：硕士专业：电磁场与微波技术指导教师：李荣玉20050101四根据理论研究及计算机仿真结果研究石英光纤的抗辐照加固方法提出抗辐照光纤的材料及工艺要求并使用Fiber_CAD进行抗辐照光纤的计算机辅助设计并计算相应参数五对制备出的初步样品进行辐照实验分析辐照前后的损耗来检验其抗辐照性能结果表明这些样品已经具有不错的抗辐照能力达到了1106rad辐照剂量条件的设计要求关键词光纤辐照太空环境SRIMFiberCAD上海交通大学硕士学位论文ABSTRACTRESEARCHONANTI-RADIATI

2、ONEFFECTOFOPTICALFIBERUSEDFORSPACEFLIGHTABSTRACTOpticalfibercommunicationhasbeenthemainpartofcommunicationaftermorethanthirtyyears5development.Opticalfiberhasbeenusedinmoreandmorefields,whichincludesomespecialradiateenvironments・Especiallywithdevelopingofspacetechnologyinourcountry,

3、opticalfiberhasbecomethemaintransmissionmediaofthecommunicationsysteminspaceequipment,suchasartificialsatellite,mannedspacecraftandsoon.However,theradiationinspacewilldamagefibersandincreasetheloss.Thereisaverylargeradiation-inducedattenuationinfiberunderastrongimpulseradiation.Andt

4、helongtermradiationoflowdoseratewillcausethepermanentdamageinfiber.Soitisveryurgenttoanalyzeandresearchtheradiateeffectofopticalfibertomanufacturetheanti-radiationfiberwhichisappropriatetobeusedinspaceenvironment.Aimedatthepresentcondition,wedidaseriousofresearchontheoryresearch,com

5、putersimulationandexperimentsasthefollow:1.Discussedtheinfluenceonanti-radiationcharacterofopticalfiberbythecontributionofthedifferentfactorsandsetup上海交通大学硕士学位论文ABSTRACTthetheorymodelofradiation-inducedabsorptioninfiberinspaceenvironment.2.Simulatedtheradiateeffectofquartzwithdiffer

6、entdopantsbySRIMprogramanddiscussedthedifferentinfluenceofdifferentdopedions・3.Chosesamplefiberwithdifferentadulterationandcomparedtheradiation-inducedabsorptionafter60Co-source-irradiation(dose:5105rad),anddiscussedthebetteradulterationinopticalfiber.4.Researchedthewayonanti-radiat

7、ionofquartzfiberbasedontheresultofthetheoryresearchandcomputersimulation.Designedtheprofileoftheanti-radiationfiberwithaidofFiber_CADandcalculatedtheparameter.5.Didtheradiateexperimentonsamplefiberandanalyzedtheradiation-inducedabsorptiontoinspecttheanti-radiationabilityofsamplefibe

8、r.Theresultproofedt