Radiography Testing (RT) is used to perform inspections that detect internal discontinuities in all material types, and can be an option for both field and shop work. RT is predominantly used for weld inspection or the testing of castings and forgings using one of two source types, X-ray or Gamma ray (Isotope) radiation.
Using radiography, the part is exposed to the source while a film is positioned behind the part to be inspected. The film is then developed and is reminiscent of a film negative. Based on the actual indications on the film and density differences a determination can be made regarding the size and orientation of imperfections within the material as well as the their location relative to the weld. We are then in a position to determine whether or not the defect passes or fails based on the accept/reject criteria within the codes.
Metalogic incorporates state of the art Computer radiography systems where requested by the client. This eliminates the need for chemicals and conventional film. We also offer digitization of film with our Digital Radiography service. Both systems eliminate the need for film storage due to the fact that all the information is stored in electronically and viewable on any computer.