诊断用X-射线成像设备 通用和大图形防散射滤栅的特性

[中文适用范围]： 本国际标准涉及诊断 X 射线成像设备中使用的抗散射网格特性的定义、确定和指示，以减少图像接收时特别是在患者体内产生的散射辐射的发生率面积，从而提高 X 射线图案的对比度。在本标准中仅考虑线性网格。由于目前乳房X线照相术中仅使用聚焦网格，因此该标准仅限于乳房X线照相抗散射网格的聚焦网格。本标准不适用于验收测试。该标准不涵盖网格区域内的性能同质性。本标准旨在用于演示测试条件下防散射网格的特性。这些条件通常在用户站点上不可用。 [外文原描述]： Deals with the definitions, determination and indication of characteristics of anti-scatter grids used in diagnostic X-ray imaging equipment, in order to reduce the incidence of scattered radiation, produced particularly in the body of the patient, upon the image reception area and thus to improve the contrast of the X-ray pattern. Only linear grids are considered in this standard. This standard is intended to be applied for the demonstration of the characteristics of anti-scatter grids under test conditions.