GE Centricity SP1001, Руководство пользователя

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38
5011A EN 20020315
Re-erasing an image plate
At the end of a normal or emergency digitizing cycle, the Centricity™ SP1001
returns an erased image plate
. However, in the following cases, you must re-
erase the image plate before re-using it in order to prevent ghost images from
interfering with the image of interest:
• If the image plate has not been used for more than 3 days.
In this case, the image plate may have been exposed to stray radiation.
• If an image plate has been exposed to an exceptionally high X-ray dose.
In this case, deep layers of the image plate may still retain a latent image after
standard erasure. Leave the image plate to rest at least one day before re-erasing
it.
You can erase image plates which you have given the status ‘to be erased’ via
the ID Station or image plates which have the status ‘erased’.
Re-erasing image plates with status ‘erased’
To re-erase an image plate which has been erased as part of a normal or
emergency digitizing cycle:
1 Check that the Centricity™ SP1001 is ready for operation:
• the Centricity™ SP1001 must display the operator main screen with ‘Ready’
status, e.g.:
• the status indicator at the top of the Centricity™ SP1001 must be green and be lit
constantly.
2 Press the Erase key on the keypad.
READY
SP1001
Status
5011 A UM EN CR SP1001.fm Page 38 Friday, March 15, 2002 4:11 PM