NF F63-436-1993 铁路机车车辆.电导体和电缆保护用软护套
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来源:标准资料网
【英文标准名称】:Railwayrollingstock.Flexiblesheathsfortheprotectionofelectricalconductorsandcables.
【原文标准名称】:铁路机车车辆.电导体和电缆保护用软护套
【标准号】:NFF63-436-1993
【标准状态】:现行
【国别】:法国
【发布日期】:1993-12-01
【实施或试行日期】:1993-12-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:S71
【国际标准分类号】:45_040;29_035_20
【页数】:10P;A4
【正文语种】:其他
【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
