在无损检测中,成象转换、计算机层析摄影、射线照相法等都是很有前途的技术,而最有实用价值的是射线照相法。达种方法是检测工件内部存在的缺陷并分析其缺陷对工件使用性能影响的一种无损检测方法。但对于微小缺陷特别是较薄部件中的微小缺陷,如飞机发动机叶片、薄壁件焊缝、集成电路块的内部引线等的检测中,普通射线探伤机由于分辨率低而无 In non-destructive testing, imaging conversion, computer tomography, radiography, etc. are all promising technologies, and the most useful is the radiographic method. The method is to detect the existence of defects within the workpiece and analyze the defects on the workpiece performance of a non-destructive testing methods. However, for the detection of minor defects, especially small defects in thinner parts, such as aircraft engine blades, thin-walled components, internal leads of integrated circuit blocks, etc., conventional radiographic flaw detectors have no resolution due to their low resolution