ASTM E1654-1994(2004) 用于远距离拉曼光纤光谱学的光纤和光缆的电离辐射感应光谱变化测量标准导则

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【英文标准名称】:StandardGuideforMeasuringIonizingRadiation-InducedSpectralChangesinOpticalFibersandCablesforUseinRemoteRamanFiberOpticSpectroscopy
【原文标准名称】:用于远距离拉曼光纤光谱学的光纤和光缆的电离辐射感应光谱变化测量标准导则
【标准号】:ASTME1654-1994(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】:光谱学;导则;放射性照射;电缆;电离辐射;遥感;光学纤维;感应光谱变化;激光和激光应用;电离辐射测量;电离辐射测量;光纤传感器系统;辐射破坏;拉曼光谱学;光谱变化;光纤光谱学
【英文主题词】:opticalfibers;radiationdamage;Ramanspectroscopy;remotesensing
【摘要】:Ionizingenvironmentswillaffecttheperformanceofopticalfibers/cablesbeingusedtotransmitspectroscopicinformationfromaremotelocation.Determinationofthetypeandmagnitudeofthespectralvariationsorinterferencesproducedbytheionizingradiationinthefiber,orboth,isnecessaryforevaluatingtheperformanceofanopticalfibersensorsystem.TheresultsofthetestcanbeutilizedasaselectioncriteriaforopticalfibersusedinopticalfiberRamanspectroscopicsensorsystems.Note18212;Theattenuationofopticalfibersgenerallyincreaseswhentheyareexposedtoionizingradiation.Thisisdueprimarilytothetrappingofradiolyticelectronsandholesatdefectsitesintheopticalmaterials,thatis,theformationofcolorcenters.Thedepopulationofthesecolorcentersbythermaloroptical(photobleaching)processes,orboth,causesrecovery,usuallyresultinginadecreaseinradiationinducedattenuation.Recoveryoftheattenuationafterirradiationdependsonmanyvariables,includingthetemperatureofthetestsample,thecompositionofthesample,thespectrumandtypeofradiationemployed,thetotaldoseappliedtothetestsample,thelightlevelusedtomeasuretheattenuation,andtheoperatingspectrum.Undersomecontinuousconditions,recoveryisnevercomplete.1.1Thisguidecoversthemethodformeasuringtherealtime,insituradiation-inducedalterationstotheRamanspectralsignaltransmittedbyamultimode,stepindex,silicaopticalfiber.Thisguidespecificallyaddressessteady-stateionizingradiation(thatis,alpha,beta,gamma,protons,etc.)withappropriatechangesindosimetry,andshieldingconsiderations,dependingupontheirradiationsource.1.2Thetestproceduregiveninthisguideisnotintendedtotesttheotheropticalandnon-opticalcomponentsofanopticalfiber-basedRamansensorsystem,butmaybemodifiedtotestothercomponentsinacontinuousirradiationenvironment.1.3ThevaluesinSIunitsaretoberegardedasstandard.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】:5P.;A4
【正文语种】: