ASTM C1268-1994(2008) 用伽马射线光谱法定量测定钚中镅241的标准试验方法

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【英文标准名称】:StandardTestMethodforQuantitativeDeterminationofAmericium241inPlutoniumbyGamma-RaySpectrometry
【原文标准名称】:用伽马射线光谱法定量测定钚中镅241的标准试验方法
【标准号】:ASTMC1268-1994(2008)
【标准状态】:现行
【国别】:美国
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:americium241;gamma-rayspectrometry;nondestructiveanalysis;plutoniumsolutions;Americium-241(241Am)content;Entrycontrol;Gamma-rayspectrometry;Metaldetection/metaldetector;Personnelscreening;Physicalsecurity;Plutonium;Plu
【摘要】:Thistestmethodallowsthedeterminationofamericium241inaplutoniumsolutionwithoutseparationoftheamericiumfromtheplutonium.Itisgenerallyapplicabletoanysolutioncontainingamericium241.Theamericium241insolidplutoniummaterialsmaybedeterminedwhenthesematerialsaredissolved(seePracticeC1168).Whentheplutoniumsolutioncontainsunacceptablelevelsoffissionproductsorothermaterials,thismethodmaybeusedfollowingatri-n-octylphosphineoxide(TOPO)extraction,ionexchangeorothersimilarseparationtechniques(seeTestMethodsC758andC759).Thistestmethodislesssubjecttointerferencesfromplutoniumthanalphacountingsincetheenergyofthegammarayusedfortheanalysisisbetterresolvedfromothergammaraysthanthealphaparticleenergiesusedforalphacounting.Theminimalsamplepreparationreducestheamountofsamplehandlingandexposuretotheanalyst.Thistestmethodisapplicableonlytohomogeneoussolutions.Thistestmethodisnotsuitableforsolutionscontainingsolids.Solutionscontainingaslittleas1x00D7;10x2212;5g/Lamericium241maybeanalyzedusingthismethod.Thelowerlimitdependsonthedetectorusedandthecountinggeometry.Solutionscontaininghighconcentrationsmaybeanalyzedfollowinganappropriatedilution.1.1Thistestmethodcoversthequantitativedeterminationofamericium241bygamma-rayspectrometryinplutoniumnitratesolutionsamplesthatdonotcontainsignificantamountsofradioactivefissionproductsorotherhighspecificactivitygamma-rayemitters.1.2Thistestmethodcanbeusedtodeterminetheamericium241insamplesofplutoniummetal,oxideandothersolidforms,whenthesolidisappropriatelysampledanddissolved.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:6P.;A4
【正文语种】:英语