ASTM E1614-1994(2004) 用于远距离光纤光谱测定和宽带系统的硅基光纤和光缆电离辐射感应衰减测量程序的标准导则

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【英文标准名称】:StandardGuideforProcedureforMeasuringIonizingRadiation-InducedAttenuationinSilica-BasedOpticalFibersandCablesforUseinRemoteFiber-OpticSpectroscopyandBroadbandSystems
【原文标准名称】:用于远距离光纤光谱测定和宽带系统的硅基光纤和光缆电离辐射感应衰减测量程序的标准导则
【标准号】:ASTME1614-1994(2004)
【标准状态】:现行
【国别】:
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E13.09
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:电离辐射感应衰减测量;辐射感应衰减;硅基光纤;光谱的衰减;稳态电离辐射;非偏振光;分级指数硅基光纤;传输和反射;电离辐射;电缆;光;性能;光谱学;导则;放射性照射;宽带系统;剂量测定;衰减;光纤;多模光纤
【英文主题词】:broadband;opticalfibers;radiation-inducedattenuation;spectroscopy
【摘要】:Ionizingenvironmentswillaffecttheperformanceofopticalfibers/cablesbeingusedtotransmitspectroscopicinformationfromaremotelocation.Determinationofthetypeandmagnitudeofthespectralattenuationorinterferences,orboth,producedbytheionizingradiationinthefiberisnecessaryforevaluatingtheperformanceofanopticalfibersensorsystem.Theresultsofthetestcanbeutilizedasaselectioncriteriaforopticalfibersusedinopticalfiberspectroscopicsensorsystems.Note18212;Theattenuationofopticalfibersgenerallyincreaseswhenexposedtoionizingradiation.Thisisdueprimarilytothetrappingofradiolyticelectronsandholesatdefectsitesintheopticalmaterials,thatis,theformationofcolorcenters.Thedepopulationofthesecolorcentersbythermaland/oroptical(photobleaching)processes,orboth,causesrecovery,usuallyresultinginadecreaseinradiation-inducedattenuation.Recoveryoftheattenuationafterirradiationdependsonmanyvariables,includingthetemperatureofthetestsample,thecompositionofthesample,thespectrumandtypeofradiationemployed,thetotaldoseappliedtothetestsample,thelightlevelusedtomeasuretheattenuation,andtheoperatingspectrum.Undersomecontinuousconditions,recoveryisnevercomplete.1.1Thisguidecoversamethodformeasuringtherealtime,insituradiation-inducedspectralattenuationofmultimode,stepindex,silicaopticalfiberstransmittingunpolarizedlight.Thisprocedurespecificallyaddressessteady-stateionizingradiation(thatis,alpha,beta,gamma,protons,etc.)withappropriatechangesindosimetry,andshieldingconsiderations,dependingupontheirradiationsource.1.2Thistestprocedureisnotintendedtotestthebalanceoftheopticalandnon-opticalcomponentsofanopticalfiber-basedsystem,butmaybemodifiedtotestothercomponentsinacontinuousirradiationenvironment.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:6P.;A4
【正文语种】: