標準號：BS EN 62220-1-3-2008
中文標準名稱：醫療電氣設備.數字X射線成像裝置的特性.探測量子效率的測定.動態成像用探測器
英文標準名稱：Medical electrical equipment — Characteristics of digital X-ray imaging devices — Part 1-3: Determination of the detective quantum efficiency — Detectors used in dynamic imaging
標準類型：C43
發布日期：2009/4/30 12:00:00
實施日期：2009/4/30 12:00:00
中國標準分類號：C43
國際標準分類號：11.040.50
引用標準：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).