Radiography Testing (RT)

A well-established NDT technique, radiography uses gamma-rays or x-rays to produce the image of an object onto film. The source of radiation is either an x-ray tube, which is normally described by the electrical voltage across the x-ray tube with the higher the voltage the higher the penetrating power of the radiation or a sealed source of radioactive material emitting gamma-rays: iridium 192, cobalt 60, selenium 75, ytterbium 169. Applications include wall loss detection and sizing in pipes and plate through to manufacturing defects in welds, forgings castings etc.