BS EN 61953-1998 诊断用X-射线成像设备.抗网格扩散的早期胸部肿瘤X-射线摄影特性

标准号：BS EN 61953-1998
中文标准名称：诊断用X-射线成像设备.抗网格扩散的早期胸部肿瘤X-射线摄影特性
英文标准名称：Diagnostic X-ray imaging equipment - Characteristics of mammographic anti-scatter grids
标准类型：C43
发布日期：1998/4/15 12:00:00
实施日期：1998/4/15 12:00:00
中国标准分类号：C43
国际标准分类号：11.040.50
适用范围：This International Standard deals with the definitions, determinations and indication of characteristics of MAMMOGRAPHIC ANTI-SCATTER grids used in diagnostic X-ray imaging equipment, in order to reduce the incidence of SCATTERED RADITION, produced particularly in the body of the PATIENT, upon the IMAGE RECEPTION area and thus to improve the contrast of the X-RAY PATTERN. At present only focused ANTI-SCATTER grids are used in mammography. The scope of this standard is therefore restricted to FOCUSED GRIDS. This standard is not intended to be applied for ACCEPTANCE TESTS. This standard does not cover the homogeneity of performance over the area of a grid. This standard is not intended to be applied for the determination of the characteristics of MAMMOGRAPHIC ANTI-SCATTER GRIDS under conditions which can normally be found in installations of X-RAY EQUIPMENT at the USER's site.