032-0265-EN Rev 1 B-1
Appendix
B
Lighting Conditions for
Imaging Plates
Without light, storage phosphor imaging would not work. The red light from the laser scanner
excites the exposed imaging plates, causing them to emit blue light. After your computer
interprets the blue light and changes it into a digital image, light is used to erase the residual
information from the imaging plate.
Between X-ray exposure and scanning, however, one must be careful handling the imaging
plates. An imaging plate should never be removed from its protective barrier and exposed to a
strong source of light. This act would erase the latent image from the plate. Therefore, you must
load imaging plates onto the carousel under controlled lighting conditions. The
recommendations below have been developed to ensure that you obtain excellent image
quality.
Lighting Conditions for Loading Carousels
Fluorescent Lights
If loading can be accomplished in less than 60 seconds, the fluorescent
lighting in the area should not exceed 20 lux. If loading will take longer
than 60 seconds, the room conditions need to be darker. At 10 lux, the
operator has about 5 minutes to accomplish loading.
Incandescent Lighting
Incandescent lighting is not as efficient as fluorescent lighting at fading
imaging plates. We recommend lighting conditions of around 20 lux.
Under incandescent lighting, however, you have about 2 minutes to
complete the loading process. If it takes longer than 2 minutes, decrease
the amount of light to 10 lux.
Sunlight
Sunlight is efficient light for erasing imaging plates but it is not
recommended that IPs are left exposed to sunlight for extreme periods of
time. Additionally, it is very difficult to judge the intensity of sunlight.
Loading carousels under sunlight must be avoided.
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