Designation:E1035−13StandardPracticeforDeterminingNeutronExposuresforNuclearReactorVesselSupportStructures1ThisstandardisissuedunderthefixeddesignationE1035;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversproceduresformonitoringtheneutronradiationexposuresexperiencedbyferriticmaterialsinnuclearreactorvesselsupportstructureslocatedinthevicinityoftheactivecore.Thispracticeincludesguidelinesfor:1.1.1Selectingappropriatedosimetricsensorsetsandtheirproperinstallationinreactorcavities.1.1.2Makingappropriateneutronicscalculationstopredictneutronradiationexposures.1.2Thispracticeisapplicabletoallpressurizedwaterreactorswhosevesselsupportswillexperiencealifetimeneutronfluence(E>1MeV)thatexceeds1×1017neutrons/cm2or3.0×10−4dpa.2(SeeTerminologyE170.)1.3Exposureofvesselsupportstructuresbygammaradia-tionisnotincludedinthescopeofthispractice,butseethebriefdiscussionofthisissuein3.2.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3E170TerminologyRelatingtoRadiationMeasurementsandDosimetryE482GuideforApplicationofNeutronTransportMethodsforReactorVesselSurveillance,E706(IID)E693PracticeforCharacterizingNeutronExposuresinIronandLowAlloySteelsinTermsofDisplacementsPerAtom(DPA),E706(ID)E844GuideforSensorSetDesignandIrradiationforReactorSurveillance,E706(IIC)E854TestMethodforApplicationandAnalysisofSolidStateTrackRecorder(SSTR)MonitorsforReactorSurveillance,E706(IIIB)E910TestMethodforApplicationandAnalysisofHeliumAccumulationFluenceMonitorsforReactorVesselSurveillance,E706(IIIC)E944GuideforApplicationofNeutronSpectrumAdj...