Gamma Radiography
Gamma Radiography is a method of inspection which uses short wave gamma rays to penetrate various materials and generate an image to detect flaws. The radiograph is a two dimensional image on film that gives an inspector the ability to detect surface and subsurface defects.
Iridium 192 is the most commonly used industrial gamma ray and is used for testing, pressure piping, pressures vessels, large capacity storage tanks, pipelines, casting, forgings, fittings, valves and structural welds. Theoretically Radiographers can radiograph any solid, flat material (walls ceilings floors square rectangular containers) or any hollow cylindrical or spherical object.
Limitations
Gamma Radiography with Iridium 192 can be used to inspection steel up to 2.5” in thickness. Access to both sides is required and viewing of the radiograph must be done with a high intensity white light in a darkroom. Cave Inspection adheres to all CNSC regulations when performing Radiography. Large areas must be evacuated to ensure the safety of all personnel and the general public.
