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BS ISO 6980-1-2006 核能.β粒子辐射基准源.生产方法

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【英文标准名称】:Nuclearenergy-Referencebeta-particleradiation-Methodsofproduction
【原文标准名称】:核能.β粒子辐射基准源.生产方法
【标准号】:BSISO6980-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-09-29
【实施或试行日期】:2006-09-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:β辐射;β粒子;校正;定义;计量;剂量计;剂量测定;辐照率表;核能;核动力;辐射;辐射测量;基准源;规范
【英文主题词】:Betaradiation;Beta-particles;Calibration;Definition;Definitions;Dosequantities;Dosimeters;Dosimetry;Exposure-ratemeters;Nuclearenergy;Nuclearpower;Radiation;Radiationmeasurement;Referencesources;Specifications
【摘要】:ThispartofISO6980specifiestherequirementsforreferencebetaradiationfieldsproducedbyradionuclidesourcestobeusedforthecalibrationofpersonalandareadosemetersanddose-ratemeterstobeusedforthedeterminationofthequantitiesHp(0,07)andH'(0,07),andforthedeterminationoftheirresponseasafunctionofbetaparticleenergyandangleofincidence.Itgivesthecharacteristicsofradionuclidesthathavebeenusedtoproducereferencebetaradiationfields,givesexamplesofsuitablesourceconstructionsanddescribesmethodsforthemeasurementoftheresidualmaximumbetaparticleenergyandthedoseequivalentrateatadepthof0,07mmintheInternationalCommissiononradiationunitsandmeasurements(ICRU)sphere.Theenergyrangeinvolvedliesbetween66keV1)and3,6MeVandthedoseequivalentratesareintherangefromabout10μSvh-1toatleast10Svh-1.Inaddition,forsomesourcesvariationsofthedoseequivalentrateasafunctionoftheangleofincidencearegiven.ThispartofISO6980proposestwoseriesofbetareferenceradiationfields,fromwhichtheradiationnecessaryfordeterminingthecharacteristics(calibrationandenergyandangulardependenceofresponse)ofaninstrumentcanbeselected.Series1referenceradiationfieldsareproducedbyradionuclidesourcesusedwithbeamflatteningfiltersdesignedtogiveuniformdoseequivalentratesoveralargeareaataspecifieddistance.Theproposedsourcesof90Sr+90Y,85Kr,204TIand147Pmproducemaximumdoseequivalentratesofapproximately200mSvh_1.Series2referenceradiationfieldsareproducedwithouttheuseofbeam-flatteningfilters,whichallowslargeareaplanarsourcesandarangeofsource-to-calibrationplanedistancestobeused.Closetothesources,onlyrelativelysmallareasofuniformdoserateareproduced,butthisserieshastheadvantageofextendingtheenergyanddoseraterangesbeyondthoseofSeries1.Theradionuclidesusedarethoseofseries1withtheadditionoftheradionuclides14Cand106Ru+106Rh;thesesourcesproducedoseequivalentratesofupto10Svh-1.
【中国标准分类号】:F81
【国际标准分类号】:17_240
【页数】:20P;A4
【正文语种】:英语


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Product Code:SAE J1533
Title:Operator Enclosure Air Filter Element Test Procedure
Issuing Committee:Hftc6, Operator Accommodation
Scope: This SAE Recommended Practice establishes a uniform test procedure for determining performance levels of operator enclosure panel type air filters on off-road, self-propelled work machines used in construction, general-purpose industrial, agriculture, and forestry as defined in SAE J1116 and equipped with an operator enclosure with a powered fresh air system.【英文标准名称】:Concretepavements-Functionalrequirementsforconcretepavements
【原文标准名称】:混凝土路面.混凝土路面的功能要求
【标准号】:BSEN13877-2-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-06-27
【实施或试行日期】:2005-06-27
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);耐力;步行区;混凝土;材料强度;融冻交变试验;分类;防冻层;耐霜冻性;质量控制;质量保证;通道和空间体系(建筑物);飞机场;公路建设;密度;抗压强度;固定件;车行道(公路);振动;道路;定义;混凝土结构;表面修整;高速公路;堆放场;混凝土地板;体密度;桥;防冻;表层;厚度
【英文主题词】:Airfields;Anti-freezing;Antifreezinglayers;Bridges;Bulkdensity;Carriageways;Circulationandspacesystems(buildings);Classification;Compressivestrength;Concretefloors;Concretestructures;Concretes;Definition;Definitions;Density;Fixings;Frostresistance;Frost-thawalternatingtest;Motorways;Pedestrianzone;Qualityassurance;Qualitycontrol;Resistance;Roadconstruction;Roads;Specification(approval);Storagedumps;Strengthofmaterials;Surfacelayers;Surfacing(exteriorspaces);Thickness;Vibration
【摘要】:
【中国标准分类号】:Q20
【国际标准分类号】:93_080_20
【页数】:16P.;A4
【正文语种】:英语