【英文标准名称】:Medicalelectricalequipment—CharacteristicsofdigitalX-rayimagingdevices—Part1-3:Determinationofthedetectivequantumefficiency—Detectorsusedindynamicimaging
【原文标准名称】:医疗电气设备.数字X射线成像装置的特性.探测量子效率的测定.动态成像用探测器
【标准号】:BSEN62220-1-3-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-04-30
【实施或试行日期】:2009-04-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;诊断设备;数字的;显示装置;动态的;电气工程;电医学;医疗设备;医疗放射照相术;医疗技术学;量子效率;辐射学;放射器具(医学);放射疗法;规范(验收);X射线图象增强器
【英文主题词】:Definitions;Diagnosticequipment;Digital;Displayunits;Dynamic;Electricalengineering;Electromedicine;Medicalequipment;Medicalradiography;Medicaltechnology;Quantumefficiency;Radiology;Radiologyapparatus(medical);Radiotherapy;Specification(approval);X-rayimageintensifiers
【摘要】:ThispartofIEC62220specifiesthemethodforthedeterminationoftheDETECTIVEQUANTUMEFFICIENCY(DQE)ofDIGITALX-RAYIMAGINGDEVICESasafunctionofAIRKERMAandofSPATIALFREQUENCYfortheworkingconditionsintherangeofthemedicalapplicationasspecifiedbytheMANUFACTURER.TheintendedusersofthispartofIEC62220aremanufacturersandwellequippedtestlaboratories.ThisPart1-3isrestrictedtoDIGITALX-RAYIMAGINGDEVICESthatareusedfordynamicimagingsuchas,butnotexclusively,directandindirectflatpanel-detectorbasedsystems.ItisnotrecommendedtousethispartofIEC62220fordigitalX-RAYIMAGEINTENSIFIER-basedsystems.NOTE1Thisnegativerecommendationisbasedonthelowfrequencydrop,vignettingandgeometricaldistortionpresentinthesedeviceswhichmayputseverelimitationsontheapplicabilityofthemeasurementmethodsdescribedinthisstandard.ThispartofIEC62220isnotapplicableto:–DIGITALX-RAYIMAGINGDEVICESintendedtobeusedinmammographyorindentalradiography;–COMPUTEDTOMOGRAPHY;and–systemsinwhichtheX-rayfieldisscannedacrossthepatient.NOTE2Thedevicesnotedaboveareexcludedbecausetheycontainmanyparameters(forinstance,beamqualities,geometry,timedependence,etc.)whichdifferfromthoseimportantfordynamicimaging.Someofthesetechniquesaretreatedinseparatestandards(IEC62220-1andIEC62220-1-2).
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:40P.;A4
【正文语种】:英语