ASTM C992-2011 核废料储存架用硼基中子吸收材料系统标准规格

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【英文标准名称】:StandardSpecificationforBoron-BasedNeutronAbsorbingMaterialSystemsforUseinNuclearSpentFuelStorageRacks
【原文标准名称】:核废料储存架用硼基中子吸收材料系统标准规格
【标准号】:ASTMC992-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:C26.03
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:硼;乏燃料;存放架;吸收;含硼矿物;辐照度/放射-核应用;中子吸收材料;核反应堆槽;核反应堆槽-轻水冷式;核废物和废弃材料;废核燃料(SNF)
【英文主题词】:boron;spentfuel;storagerack;Absorption;Boron-containingminerals;Irradiance/irradiation--nuclearapplications;Neutronabsorbingmaterials;Nuclearreactorvessels;Nuclearreactorvessels--light-watercooled;Nuclearscrapandwastematerials;Spentnuclear
【摘要】:1.1Thisspecificationdefinescriteriaforboron-basedneutronabsorbingmaterialsystemsusedinracksinapoolenvironmentforstorageofnuclearlightwaterreactor(LWR)spent-fuelassembliesordisassembledcomponentstomaintainsub-criticalityinthestorageracksystem.1.2Boron-basedneutronabsorbingmaterialsystemsnormallyconsistofmetallicboronorachemicalcompoundcontainingboron(forexample,boroncarbide,B4C)supportedbyamatrixofaluminum,steel,orothermaterials.1.3Inaboron-basedabsorber,neutronabsorptionoccursprimarilybytheboron-10isotopethatispresentinnaturalborontotheextentof18.3x00B1;0.2%byweight(dependinguponthegeologicaloriginoftheboron).Boron,enrichedinboron-10couldalsobeused.1.4Thematerialssystemsdescribedhereinshallbefunctionalx2013;thatisalwaysbecapabletomaintainaB10arealdensitysuchthatsubcriticalityKeffx003C;0.95orKeffx003C;0.98orKeffx003C;1.0dependingonthedesignspecificationfortheservicelifeintheoperatingenvironmentofanuclearspentfuelpool.1.5Anumberofacceptableboron-basedabsorbingmaterialscombinationsarecurrentlyavailablewhileothersarebeingdevelopedforuseinthefuture.Thisspecificationdefinescriteriaessentialandapplicabletoallmaterialscombinationsandidentifiesparametersabuyershouldspecifytosatisfyauniqueorparticularrequirement.1.6Thescopeofthisspecificationdoesnotcomprehensivelycoverallprovisionsforpreventingcriticalityaccidentsorrequirementsforhealthandsafety.Observanceofthisspecificationdoesnotrelievetheuseroftheobligationtoconformtoallapplicableinternational,national,andlocalregulations.
【中国标准分类号】:F75
【国际标准分类号】:27_120_01
【页数】:4P.;A4
【正文语种】: