Designation:E2006−10StandardGuideforBenchmarkTestingofLightWaterReactorCalculations1ThisstandardisissuedunderthefixeddesignationE2006;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversgeneralapproachesforbenchmarkingneutrontransportcalculationsinlightwaterreactorsystems.Acompanionguide(GuideE2005)coversuseofbenchmarkfieldsfortestingneutrontransportcalculationsandcrosssectionsinwellcontrolledenvironments.Thisguidecoversexperimentalbenchmarkingofneutronfluencecalculations(orcalculationsofotherexposureparameterssuchasdpa)inmorecomplexgeometriesrelevanttoreactorsurveillance.Particularsectionsoftheguidediscuss:theuseofwell-characterizedbenchmarkneutronfieldstoprovideanindicationoftheaccuracyofthecalculationalmethodsandnucleardatawhenappliedtotypicalcases;andtheuseofplantspecificmeasure-mentstoindicatebiasinindividualplantcalculations.Useofthesetwobenchmarktechniqueswillservetolimitplant-specificcalculationaluncertainty,and,whencombinedwithanalyticaluncertaintyestimatesforthecalculations,willpro-videuncertaintyestimatesforreactorfluenceswithahigherdegreeofconfidence.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E261PracticeforDeterminingNeutronFluence,FluenceRate,andSpectrabyRadioactivationTechniquesE262TestMethodforDeterminingThermalNeutronReac-tionRatesandThermalNeutronFluenceRatesbyRadio-activationTechniquesE706MasterMatrixforLight-WaterReactorPressureVesselSurveillanceStandards,E706(0)(Withdrawn2011)3E844GuideforSensorSetDesignandIrradiationforReactorSurveillance,E706(IIC)E944GuideforApplicationofNeutronSp...
