Digital radiography (DR) is a volumetric testing method where the image of the inspected asset is captured by an electronic detector rather than traditional photographic film. This technology enables real-time on-site results, eliminating the costs and delays associated with photochemical film processing.
Digital radiography uses high-sensitivity digital detectors to record radiation passing through the tested object. The resulting image is immediately processed and displayed on a computer screen, allowing for instant structural integrity assessment. Key benefits of the digital technique include significantly shorter exposure times and reduced radiation doses, which reduce exposure to ionizing radiation and therefore enhance workplace safety.
This method is particularly useful for evaluating the condition of pipelines, pressure vessels, valves, and other structural components, enabling the detection of discontinuities in materials such as steel, aluminum, cast iron, plastics, and composites.