標(biāo)準(zhǔn)號(hào)：IEC 62220-1-3-2008
中文標(biāo)準(zhǔn)名稱：醫(yī)療電氣設(shè)備.數(shù)字X射線成像裝置的特性.第1-3部分:探測(cè)量子效率的測(cè)定.動(dòng)態(tài)成像用探測(cè)器
英文標(biāo)準(zhǔn)名稱：Medical electrical equipment - Characteristics of digital X-ray imaging devices - Part 1-3: Determination of the detective quantum efficiency - Detectors used in dynamic imaging
標(biāo)準(zhǔn)類型：C43
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號(hào)：C43
國際標(biāo)準(zhǔn)分類號(hào)：11.040.50
引用標(biāo)準(zhǔn)：IEC 60336;IEC TR 60788-2004;IEC 61267-1994;ISO 12232-1998
適用范圍：This part of IEC 62220 specifies the method for the determination of the DETECTIVE QUANTUMEFFICIENCY (DQE) of DIGITAL X-RAY IMAGING DEVICES as a function of AIR KERMA and of SPATIALFREQUENCY for the working conditions in the range of the medical application as specified bythe MANUFACTURER. The intended users of this part of IEC 62220 are manufacturers and wellequipped test laboratories.This Part 1-3 is restricted to DIGITAL X-RAY IMAGING DEVICES that are used for dynamic imagingsuch as, but not exclusively, direct and indirect flat panel-detector based systems.It is not recommended to use this part of IEC 62220 for digital X-RAY IMAGE INTENSIFIER-basedsystems.NOTE 1 This negative recommendation is based on the low frequency drop, vignetting and geometrical distortionpresent in these devices which may put severe limitations on the applicability of the measurement methodsdescribed in this standard.This part of IEC 62220 is not applicable to:– DIGITAL X-RAY IMAGING DEVICES intended to be used in mammography or in dentalradiography;– COMPUTED TOMOGRAPHY; and– systems in which the X-ray field is scanned across the patient.NOTE 2 The devices noted above are excluded because they contain many parameters (for instance, beamqualities, geometry, time dependence, etc.) which differ from those important for dynamic imaging. Some of thesetechniques are treated in separate standards (IEC 62220-1 and IEC 62220-1-2).