Digital & Computerized Radiography
Digital radiography (DR) and Computed radiography (CR) are used to assess internal or external corrosion/erosion losses in process piping, pressure vessels and valves. Based on it, one can estimate remaining thickness and wall losses.
DR inspection techniques deliver timelier, safer, and more detailed inspection data than traditional radiography. Benefits include improved discontinuity evaluation, enhanced image storage and archiving, smaller exclusion zones, increased productivity, and reduced safety hazards.
CR uses very similar equipment to conventional radiography except that in place of a film to create the image, an imaging plate (IP) made of photostimulable phosphor is used. The imaging plate is housed in a special cassette and placed under the body part or object to be examined and the x-ray exposure is made.
Computed radiography can be performed on the same materials and in the same situations as standard radiography. BECA uses multivison software, which allows the user to acquire, review, report and archive inspection data. Multivision software also permits image enhancement and data sharing to provide significant improvements in productivity and faster identification of defect indications.
Benefits of DR& CR techniques include:
- Greater image quality and faster results.
- Accurate detectability of smaller defects.
- Economical due to the reduced film costs as the data is stored digitally.
- Portable and mobile systems for real time site results.
- Provides options for dose reduction wherever necessary.
- New technology also offers storage possibilities of the data and images.
- Possibility of wireless transfer of data.