Standard Digital Plates

These digital paltes are for ScanX CR Scanners. For other models, please contact DIS.

The CR imaging plate (IP) contains photostimulable storage phosphors, which store the radiation level received at each point in local electron energies. When the plate is put through the scanner, the scanning laser beam causes the electrons to relax to lower energy levels, emitting light that is detected by a photo-multiplier tube, which is then converted to an electronic signal. The electronic signal is then converted to discrete (digital) values and placed into the image processor pixel map.

Imaging plates can theoretically be re-used thousands of times if they are handled carefully. IP handling under industrial conditions, however, may result in damage after a few hundred uses. An image can be erased by simply exposing the plate to a room-level fluorescent light. Most laser scanners automatically erase the image plate after laser scanning is complete. The imaging plate can then be re-used. Reusable phosphor plates are environmentally safe but need to be disposed of according to local regulations.

Advantages

• No silver based film or chemicals are required to process film.
• Reduced film storage costs because images can be stored digitally.
• Computed radiography often requires fewer retakes due to under- or over-exposure which results in lower overall dose to the patient.
• Image acquisition is much faster - image previews can be available in less than 15 seconds.
• By adjusting image brightness and/or contrast, a wide range of thicknesses may be examined in one exposure, unlike conventional film based radiography, which may require a different exposure or multiple film speeds in one exposure to cover wide thickness range in a component.
• Images can be enhanced digitally to aid in interpretation.
• Images can be stored on disk or transmitted for off-site review.
• Ever growing technology makes the CR more affordable than ever today. With Chemicals, dark room storage and staff to organize them, you could own a CR for the same monthly cost while being environmentally conscious, depending upon the size of the Radiographic Operation.