IEC 62220-1-3:2008规定了测定数字X射线成像设备的探测量子效率（DQE）的方法，该效率是制造商规定的医疗应用范围内工作条件下空气比释动能和空间频率的函数。IEC 62220本部分的预期用户是制造商和设备齐全的测试实验室。本第1-3部分仅限于用于动态成像的数字X射线成像设备，例如但不限于基于直接和间接平板探测器的系统。不建议将IEC 62220的本部分用于基于数字X射线图像增强器的系统。

IEC 62220-1-3:2008 specifies the method for the determination of the detective quantum efficiency (DQE) of digital X-ray imaging devices as a function of air kerma and of spatial frequency for the working conditions in the range of the medical application as specified by the manufacturer. The intended users of this part of IEC 62220 are manufacturers and well equipped test laboratories. This Part 1-3 is restricted to digital X-ray imaging devices that are used for dynamic imaging such 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-based systems.