Industrial Radiography

Industrial radiography is also called nondestructive testing. Radiation is used to inspect pipes, walls, and a variety of structures to look for defects. The source can be a sealed source of radioactive material (iridium-192) or an x-ray machine. An example of industrial radiography is when a radiation source is lowered into piping to the location of a weld and, with photographic film wrapped on the outside of the weld, a radiograph of the weld is taken to assure it is free of defect.