Commonly referred to as X-Ray, RT (Radiographic Testing), RI (Radiographic Inspection) and Radiography.
Radiographic inspection is a highly effective and widely used NDT method for the detection of sub surface defects.
The radiographic testing technique involves the use of penetrating gamma or X-radiation to examine parts, welds and products for imperfections.
An X-ray machine or radioactive isotope are used as a source of radiation; where the radiation is directed through a part and onto film. The film is either wet processed or digitally processed and an evaluation made of the resulting image.