【英文标准名称】:Medicalelectricalequipment.CharacteristicsofdigitalX-rayimagingdevices.Determinationofthedetectivequantumefficiency
【原文标准名称】:医疗电气设备.数字X光成像设备特性.量子检测效率的确定
【标准号】:BSEN62220-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-02-02
【实施或试行日期】:2004-02-02
【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】:临床检查器械;定义(术语);诊断(医学);诊断设备;数字的;数字信号;显示装置;电气工程;电气设备;医用电气设备;电医学;电子设备及元件;医疗设备;医疗放射照相术;医疗技术学;量子效率;辐射学;放射疗法;规范(验收);术语学;X射线仪;X射线图象增强器;X射线
【英文主题词】:Clinicalinvestigationinstruments;Definitions;Diagnosis(medical);Diagnosticequipment;Digital;Digitalsignals;Displayunits;Electricalengineering;Electricalequipment;Electricalmedicalequipment;Electromedicine;Electronicequipmentandcomponents;Medicalequipment;Medicalradiography;Medicaltechnology;Quantumefficiency;Radiology;Radiotherapy;Specification(approval);Terminology;X-rayapparatus;X-rayimageintensifiers;X-rays
【摘要】:ThispartofIEC62220specifiesthemethodforthedeterminationoftheDETECTIVEQUANTUMEFFICIENCY(DQE)ofDIGITALX-RAYIMAGINGDEVICESasafunctionofexposureandofSPATIALFREQUENCYfortheworkingconditionsintherangeofthemedicalapplicationasspecifiedbytheMANUFACTURER.ThispartofIEC62220isapplicabletoprojectionDIGITALX-RAYIMAGINGDEVICESproducingIMAGESindigitalformatthatareusedformedicaldiagnosis.ItisrestrictedtoDIGITALX-RAYIMAGINGDEVICESthatareusedforradiographicimaging,suchasCRsystems,selenium-basedsystems,flatpaneldetectors,opticallycoupledCCDdetectors,anddigitalX-RAYIMAGEINTENSIFIERSusedforsingleexposures.ThispartofIEC62220isnotapplicableto-DIGITALX-RAYIMAGINGDEVICESintendedtobeusedinmammographyorindentalradiography;-COMPUTEDTOMOGRAPHY:-systemsinwhichtheX-rayfieldisscannedacrossthepatient;and-devicesfordynamicimaging(whereseriesofimagesareacquired,asinfluoroscopicorcardiacimaging).NOTEThedevicesnotedaboveareexcludedbecausetheycontainmanyparameters(forinstance,beamqualities,geometry,timedependence,etc.)whichdifferfromthoseimportantforgeneralradiography.Itisintendedtotreatsomeofthesetechniquesinseparatestandardsashasbeendoneforothertopics,forinstanceforspeedandcontrast,inIECandISOstandards.
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:32P;A4
【正文语种】:英语


【英文标准名称】:Paintsandvarnishes-Determinationofdensity-Part2:Immersedbody(plummet)method(ISO2811-2:2011);GermanversionENISO2811-2:2011
【原文标准名称】:色漆和清漆.密度的测定.第2部分:落球法(ISO2811-2-2011);德文版本ENISO2811-2:2011
【标准号】:ENISO2811-2-2011
【标准状态】:现行
【国别】:
【发布日期】:2011-06
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Calibrationpractice;Coatingmaterials;Contactaerators;Definitions;Densimetry;Density;Densitymeasurement;Determination;Immersion;Immersiontests;Immersiontests(corrosion);Materialstesting;Mathematicalcalculations;Measurement;Measurement,testingandinstruments;Measuringtechniques;Paints;Physicalpropertymeasurement;Plummets;Temperature;Temperaturedependence;Temperature-dependent;Testing;Varnishes
【摘要】:
【中国标准分类号】:
【国际标准分类号】:87_040
【页数】:16P.;A4
【正文语种】:英语