Radiographic testing is one of the oldest methods of nondestructive testing and has been in use for approximately five decades. Among the advantages of this method compared to other methods, such as ultrasound tests, is the formation of an internal ‘photograph’ of the material, which no other method is able to achieve. The radiographic testing of weld bead or casting pieces using X-rays or gamma source is one of the most important uses for this inspection method. This work deals specifically with weld bead radiographs that are used to check the existence of weld defects from a variety of causes. The conventional method of inspection requires that the radiographic images are first-rate and are consequently
controlled by international standard. However, radiographic inspection by inspectors is done subjectively and requires
great experience, keenness of vision and knowledge of