标准摘要
[中文适用范围]： IEC 62494 的这一部分规定了使用数字 X 射线成像系统采集的图像的曝光指数的定义和要求。本标准适用于一般放射线照相中使用的数字 X 射线成像系统，用于生成一般应用的投影 X 射线图像，例如但不限于： 基于可激励磷光体的计算机放射线照相 (CR) 系统； ?基于平板探测器的系统； ?基于电荷耦合器件（CCD）的系统。第一版中不包括基于图像增强器的系统以及用于乳房X线照相或牙科应用的系统。该标准仅定义了由单个辐照事件生成的图像的曝光指数。不包括由多次辐照生成的图像（例如@断层合成或双能图像@单个CR板上的多个视图）。 [外文原描述]： IEC 62494-1:2008 specifies definitions and requirements for the exposure index of images acquired with digital X-ray imaging systems. IEC 62494-1:2008 is applicable to digital X-ray imaging systems used in general radiography for producing projection X-ray images for general applications, such as, but not exclusively: - computed radiography (CR) systems based on stimulable phosphors; - flat-panel detector based systems; - charge-coupled device (CCD) based systems. Image intensifier based systems and systems for mammographic or dental application are not covered in this first edition. IEC 62494-1:2008 defines the exposure index only for images generated with a single irradiation event. Images generated from multiple irradiations (e.g., tomosynthetic or dual-energy images, multiple views on a single CR plate) are not covered.
英文名称Medical electrical equipment - Exposure index of digital X-ray imaging systems - Part 1: Definitions and requirements for general radiography