BS EN 61267-2006 医用诊断X射线设备.测定特性时使用的辐射条件
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【英文标准名称】:MedicaldiagnosticX-rayequipment-Radiationconditionsforuseinthedeterminationofcharacteristics
【原文标准名称】:医用诊断X射线设备.测定特性时使用的辐射条件
【标准号】:BSEN61267-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-02-28
【实施或试行日期】:2006-02-28
【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】:特性;定义;测定;诊断;诊断设备;电气工程;电医学;放射条件;测量;医疗设备;医疗放射照相术;医学科学;医疗技术学;峰值电压;光线疗法;辐射;辐射防护;辐射学;X射线仪;X射线设备;X射线
【英文主题词】:Characteristics;Definition;Definitions;Determination;Diagnosis;Diagnosticequipment;Electricalengineering;Electromedicine;Irradiationcondition;Measurement;Medicalequipment;Medicalradiography;Medicalsciences;Medicaltechnology;Peakvoltage;Phototherapy;Radiation;Radiationprotection;Radiology;X-rayapparatus;X-rayequipment;X-rayplants;X-rays
【摘要】:ThisInternationalStandardappliestotestprocedureswhich,forthedeterminationofcharacteristicsofsystemsorcomponentsofmedicaldiagnosticX-RAYEQUIPMENT,requirewell-definedRADIATIONCONDITIONS.Exceptformammography,thisstandarddoesnotapplytoconditionswherediscontinuitiesinradiationabsorptionofelementsaredeliberatelyusedtomodifypropertiesoftheRADIATIONBEAM(forexamplebyrareearthfilters).ThisstandarddealswithmethodsforgeneratingRADIATIONBEAMSwithRADIATIONCONDITIONSwhichcanbeusedundertestconditionstypicallyfoundintestlaboratoriesorinmanufacturingfacilitiesforthedeterminationofcharacteristicsofmedicaldiagnosticX-RAYEQUIPMENT.ExamplesofsuchRADIATIONQUALITIESareRADIATIONBEAMSemergingthroughthefiltrationfromtheX-RAYSOURCEASSEMBLY.RADIATIONCONDITIONSrepresentthemoregeneralcase,whereSCATTEREDRADIATIONemergesfromanEXITSURFACEofaPATIENToraPHANTOM.Thisrequiresawelldefinedgeometricalarrangement.ThemostcompletespecificationofRADIATIONFIELDSisgivenbythespectraldistributionofthephotonfluence.SincethemeasurementofX-RAYSPECTRAisademandingtask,thisstandardexpressesRADIATIONQUALITIESintermsoftheX-RAYTUBEVOLTAGE,thefirstandsecondHALFVALUELAYER.InthecaseofRADIATIONCONDITIONS,specificationsareperformedadditionallyintermsofPHANTOMpropertiesandgeometry.TheattempttocharacterizeaspectraldistributionjustbymeansoftheX-RAYTUBEVOLTAGE,thefirstandpossiblythesecondHALF-VALUELAYERisthusacompromisebetweenthemutuallyconflictingrequirementsofavoidingexcessiveeffortsforestablishingaRADIATIONQUALITYandofthecompleteabsenceofanyambiguityinthedefinitionofaRADIATIONQUALITY.DuetodifferencesinthedesignandtheageofX-RAYTUBESintermsofanodeangle,anoderougheningandINHERENTFILTRATION,twoRADIATIONQUALITIESproducedatagivenXRAYTUBEVOLTAGEhavingthesamefirstHALF-VALUELAYERcanstillhavequitedifferentspectraldistributions.GiventheinherentambiguityinthecharacterizationofRADIATIONQUALITY,itisessentialthatfurthertolerancesintroducedbyallowingcertainrangesofvalues,e.g.forX-RAYTUBEVOLTAGEandfirstHALF-VALUELAYER,mustbesufficientlysmallnottojeopardisetheunderlyingobjectiveofthisstandard.ThisstandardistoensurethatmeasurementsofthepropertiesofmedicaldiagnosticequipmentshouldproduceconsistentresultsifRADIATIONQUALITIESorRADIATIONCONDITIONSincompliancewiththisstandardareused.LicensedCopy
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:46P.;A4
【正文语种】:英语
【原文标准名称】:医用诊断X射线设备.测定特性时使用的辐射条件
【标准号】:BSEN61267-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-02-28
【实施或试行日期】:2006-02-28
【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】:特性;定义;测定;诊断;诊断设备;电气工程;电医学;放射条件;测量;医疗设备;医疗放射照相术;医学科学;医疗技术学;峰值电压;光线疗法;辐射;辐射防护;辐射学;X射线仪;X射线设备;X射线
【英文主题词】:Characteristics;Definition;Definitions;Determination;Diagnosis;Diagnosticequipment;Electricalengineering;Electromedicine;Irradiationcondition;Measurement;Medicalequipment;Medicalradiography;Medicalsciences;Medicaltechnology;Peakvoltage;Phototherapy;Radiation;Radiationprotection;Radiology;X-rayapparatus;X-rayequipment;X-rayplants;X-rays
【摘要】:ThisInternationalStandardappliestotestprocedureswhich,forthedeterminationofcharacteristicsofsystemsorcomponentsofmedicaldiagnosticX-RAYEQUIPMENT,requirewell-definedRADIATIONCONDITIONS.Exceptformammography,thisstandarddoesnotapplytoconditionswherediscontinuitiesinradiationabsorptionofelementsaredeliberatelyusedtomodifypropertiesoftheRADIATIONBEAM(forexamplebyrareearthfilters).ThisstandarddealswithmethodsforgeneratingRADIATIONBEAMSwithRADIATIONCONDITIONSwhichcanbeusedundertestconditionstypicallyfoundintestlaboratoriesorinmanufacturingfacilitiesforthedeterminationofcharacteristicsofmedicaldiagnosticX-RAYEQUIPMENT.ExamplesofsuchRADIATIONQUALITIESareRADIATIONBEAMSemergingthroughthefiltrationfromtheX-RAYSOURCEASSEMBLY.RADIATIONCONDITIONSrepresentthemoregeneralcase,whereSCATTEREDRADIATIONemergesfromanEXITSURFACEofaPATIENToraPHANTOM.Thisrequiresawelldefinedgeometricalarrangement.ThemostcompletespecificationofRADIATIONFIELDSisgivenbythespectraldistributionofthephotonfluence.SincethemeasurementofX-RAYSPECTRAisademandingtask,thisstandardexpressesRADIATIONQUALITIESintermsoftheX-RAYTUBEVOLTAGE,thefirstandsecondHALFVALUELAYER.InthecaseofRADIATIONCONDITIONS,specificationsareperformedadditionallyintermsofPHANTOMpropertiesandgeometry.TheattempttocharacterizeaspectraldistributionjustbymeansoftheX-RAYTUBEVOLTAGE,thefirstandpossiblythesecondHALF-VALUELAYERisthusacompromisebetweenthemutuallyconflictingrequirementsofavoidingexcessiveeffortsforestablishingaRADIATIONQUALITYandofthecompleteabsenceofanyambiguityinthedefinitionofaRADIATIONQUALITY.DuetodifferencesinthedesignandtheageofX-RAYTUBESintermsofanodeangle,anoderougheningandINHERENTFILTRATION,twoRADIATIONQUALITIESproducedatagivenXRAYTUBEVOLTAGEhavingthesamefirstHALF-VALUELAYERcanstillhavequitedifferentspectraldistributions.GiventheinherentambiguityinthecharacterizationofRADIATIONQUALITY,itisessentialthatfurthertolerancesintroducedbyallowingcertainrangesofvalues,e.g.forX-RAYTUBEVOLTAGEandfirstHALF-VALUELAYER,mustbesufficientlysmallnottojeopardisetheunderlyingobjectiveofthisstandard.ThisstandardistoensurethatmeasurementsofthepropertiesofmedicaldiagnosticequipmentshouldproduceconsistentresultsifRADIATIONQUALITIESorRADIATIONCONDITIONSincompliancewiththisstandardareused.LicensedCopy
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:46P.;A4
【正文语种】:英语
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