GE Typhoon 9200, Руководство по эксплуатации

Страница: 59 / 78

5 Maintenance
5.4 Storage phosphor screen
58
Typhoon Operating Instructions 28-9623-56 AA
5.4 Storage phosphor screen
Checking for contamination
Recommended to perform between exposures or if the screen has not been used for
several days.
1 Clean and erase the screen ( Cleaning‚ on page 58 and Section 4.3 Preparations
before start‚ on page 29 ).
2 Store the screen in a clean, light-tight box.
3 Provide enough time to register the contamination as an image on the screen.
4 After storage, scan the screen ( Section 4.4 ) and examine the image.
• If contamination is detected clean and erase the screen again and re-check for
contamination.
• If no contamination appear on the image the screens is ready to use.
Cleaning
GP screens
Use a soft cotton cloth and an intensifying screen cleaner (for example, Kodak™
Intensifying Screen Cleaner). Follow the manufacturer’s instructions.
Alternatively, use a small amount of alcohol and distilled water.
Do not use a powdered detergent. Any undissolved particles can scratch the surface of
the screen.
1 This cleaning procedure removes dust, fingerprints, static electricity, and mild
contamination from radioactive samples.
TR screens
Use a gentle gas stream or soft brush to remove any particulate matter from the
unprotected surface of the screen.
NOTICE
Before you erase the screen, check the Image eraser for contamination
from radioactive samples. To clean the Image eraser, see
Cleaning‚ on
page 58 .
NOTICE
To avoid damaging the TR screen, do not expose the screen to liquids of
any sort.