BS EN 62220-1-1:2015规定了检测量的测定方法 数字X射线成像设备的效率（DQE）与空气比释动能和空间比释动能的关系 在制造商规定的医疗应用范围内的工作条件频率 制造商。IEC 62220本部分的预期用户是制造商，以及 配备测试实验室。注1:虽然不建议使用本标准来确定digital X的DQE- 射线成像设备 只要遵守本标准中规定的要求，就不排除整合到临床系统中。额外的注意点可以是（例如但不限于）确定所需的辐射 质量，最大限度地减少散射和后向散射辐射的影响，精确的空气比释动能测量， 测试设备的定位、防护罩的存在、防散射格栅的拆除。第1-1部分仅限于数字X- 用于射线照相的射线成像设备 成像，例如但不限于CR系统、直接和间接平板探测器 基于网络的系统。不建议使用基于IEC 62220的数字图像增强器 系统。注2:基于低成本，不鼓励将本标准用于基于X射线图像增强仪的系统 这些设备中存在频率下降、渐晕和几何失真，这可能会严重限制 本标准中所述测量方法的适用性。IEC 62220的本部分不适用于:用于乳房X光摄影或牙科的数字X射线成像设备 放射照相术；槽扫描数字X射线成像设备；计算机断层扫描；动态成像设备（在透视或心脏检查中采集一系列图像） 成像）。注3:上述设备不包括在内，因为它们包含许多参数（例如，梁 质量、几何、时间依赖性等。 )与射线照相术中重要的不同。其中一些 IEC 62220标准（IEC 62220-1-2和IEC 62220-1-3）的其他部分对技术进行了处理。交叉引用:IEC 60336IEC TR 60788:2004IEC 61267:2005EN 60336EN 61267:2006ICRU报告54:1996ISO/IEC指南98-3:2008IEC 62220-1-3:2008IEC 62220-1-2:2007IEC 61262-5:1994ISO 12233:2000ISO 15529:2010ICRU报告41:1986IEC 60601-2-54EN 62220-1-3:2008EN 62220-1-2:2007EN 61262-5:1994EN 60601-2-54BS EN 62220- 1:2004，目前仍然有效。购买本文件时可获得的所有现行修订均包含在本文件中。

BS EN 62220-1-1:2015 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.NOTE 1 While not recommended, applying this standard to determine the DQE of digital X-ray imaging devices integrated in a clinical system is not excluded as long as the requirements as set in this standard are respected.Points of additional attention could be (for example but not exclusively) the establishment of the required RADIATION QUALITIES, minimizing influences of scattered and back-scattered radiation, accurate AIR KERMA measurements, positioning of the TEST DEVICE, presence of protective covers, removal of ANTI-SCATTER GRID.This Part 1-1 is restricted to DIGITAL X-RAY IMAGING DEVICES that are used for radiographic imaging such as, but not exclusively, CR systems, 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.NOTE 2 The use of this standard for X-RAY IMAGE INTENSIFER-based systems is discouraged based on the low frequency drop, vignetting and geometrical distortion present in these devices which may put severe limitations on the applicability of the measurement methods described 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 dental radiography;slot scanning DIGITAL X-RAY IMAGING DEVICES;COMPUTED TOMOGRAPHY;devices for dynamic imaging (where series of images are acquired, as in fluoroscopy or cardiac imaging).NOTE 3 The devices noted above are excluded because they contain many parameters (for instance, beam qualities, geometry, time dependence, etc.) which differ from those important for RADIOGRAPHY. Some of these techniques are treated in other parts of the IEC 62220 standards (IEC 62220-1-2 and IEC 62220-1-3).Cross References:IEC 60336IEC TR 60788:2004IEC 61267:2005EN 60336EN 61267:2006ICRU Report 54:1996ISO/IEC Guide 98-3:2008IEC 62220-1-3:2008IEC 62220-1-2:2007IEC 61262-5:1994ISO 12233:2000ISO 15529:2010ICRU Report 41:1986IEC 60601-2-54EN 62220-1-3:2008EN 62220-1-2:2007EN 61262-5:1994EN 60601-2-54Replaces BS EN 62220-1:2004 which remains currentAll current amendments available at time of purchase are included with the purchase of this document.