Definition - What does Digital Radiography mean?
Digital radiography is a form of nondestructive evaluation that uses X-rays to penetrate a material and create a projection on a film, which is then processed digitally and displayed on an electronic device. Unlike standard radiography, no chemical processing or film development needs to be performed.
Corrosionpedia explains Digital Radiography
Many different industries use digital radiography. Dentists use digital radiography to examine their patient's teeth. Similarly, doctors use digital radiography to determine the condition of bones. In manufacturing and construction, digital radiography is used to check castings for porosity. It is frequently used to check welds for discontinuities, such as a lack of fusion, lack of penetration or porosity. Digital radiography is also used to check for uniform density, which is important when trying to detect the extent to which a material has corroded.
Digital radiography holds several key advantages over standard film radiography. Digital radiography eliminates the need for a dark room and the chemicals used to develop normal radiographic film. Another key advantage of digital radiography over standard film radiography is the speed at which the radiographic image can be viewed and interpreted. Accuracy is yet another advantage. Computer imaging provides magnification and image filtering, which allows the technician interpreting the radiographic image the flexibility to view the image in the way that is most advantageous.