ASTM E526-1997(2002) 用钛的放射性测定快速中子反应率的试验方法

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【英文标准名称】:StandardTestMethodforMeasuringFast-NeutronReactionRatesbyRadioactivationofTitanium
【原文标准名称】:用钛的放射性测定快速中子反应率的试验方法
【标准号】:ASTME526-1997(2002)
【标准状态】:现行
【国别】:
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E10.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:钛;试验;核能;测量;核技术;中子
【英文主题词】:activationreaction;crosssection;dosimetry;nuclearmetrology;pressurevesselsurveillance;reactionrate;titanium;
【摘要】:1.1Thistestmethodcoversproceduresformeasuringreactionratesbytheactivationreactions46Ti(n,p)46Sc+47Ti(n,np)46Sc.Note18212;Sincethecrosssectionforthe(n,np)reactionisrelativelysmallforenergieslessthan12MeVandisnoteasilydistinguishedfromthatofthe(n,p)reaction,thistestmethodwillrefertothe(n,p)reactiononly.1.2Thereactionisusefulformeasuringneutronswithenergiesaboveapproximately4.4MeVandforirradiationtimesuptoabout250days(forlongerirradiations,seePracticeE261).1.3Withsuitabletechniques,fission-neutronfluenceratesabove109cm-2s-1canbedetermined.However,inthepresenceofahighthermal-neutronfluencerate,46Scdepletionshouldbeinvestigated.1.4Detailedproceduresforotherfast-neutrondetectorsarereferencedinPracticeE261.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F04
【国际标准分类号】:17_240;27_120_30
【页数】:3P.;A4
【正文语种】: