Radiographic Testing (RT) is a non-destructive testing (NDT) method which uses either x-rays or gamma rays to examine the internal structure of manufactured components identifying any flaws or defects. X-ray or Gamma-ray source is required – whether it is an x-ray generator or gamma ray source via radioactive materials. Recording medium – on the opposite side of the test subject needs to be a recording medium in order to capture the radiation and develop results for further analysis. Whether a film sheet is required or a digital detector panel, the images retrieved can be used to detect defects and failures. Although film radiography is not obsolete for industrial applications, it is steadily being replaced by computed radiography (CR) and digital radiography (DR). Processing Equipment – If the technique of analyzing part is film radiography, processing equipment such as chemicals are necessary to develop the image. For digital radiography or computed radiography, processing equipment such as scanners, computers and specialized software is necessary to develop, restructure and analyze the resulting image.