The world of radiography is changing. In place of conventional film with the delay and inconvenience of development, digital radiography (DR) imaging is rapidly gaining acceptance. Reusable phosphor screens produce a latent image that is then captured digitally and enhanced for immediate viewing. This technique has been in use in the medical field for some time but now TWI is working with a unit from Computerised Information Technology Ltd (CIT) to assess the capability of DR in engineering applications.
TWI has installed the latest CIT equipment that promises to give image quality matching that of conventional film.
With support from CIT, TWI has been awarded three CRAFT projects on the application of DR and is currently launching a Group Sponsored Project (GSP) to optimise DR procedures to achieve appropriate image resolution and quality suitable for assessment of welds and castings.
The advantages of DR extend beyond timesaving. Dark room practices required for film-based radiography present health and safety issues. Silver halide film, together with the associated chemicals needed for development, present an environmental threat that requires management. DR eliminates these problems and furthermore operates with reduced radiographic intensities.
For more information, please contact us.