General Safety Instructions - AGFA CR 30-X User Manual

CR 30-X/CR 30-Xm Plates and Cassettes | Introduction to Agfa CR Plates and Cassettes | 19

General Safety Instructions

CR plates and cassettes will not cause any special health or safety hazard, if
they are used as intended.
When working with the automatic exposure control device, take into account
the following two safety notices:
• Overexposure (for the MD 4.xT General/FLFS and CR MM 3.xT
Extremities cassettes)
The backscatter protection (lead) contained in the grey side of the
cassette, retains a certain amount of X-rays. The dose measured by the cell
will then be much lower than the dose actually given to the patient.
• Wrong response
CAUTION:
Image quality may suffer if a cassette and plate is not scanned
soon after exposure. The Agfa phosphor has excellent dark
decay characteristics. Two hours after exposure, approximately
80% of the energy stored upon exposure is still available. The
image retention is better than 50% up to 24 hours after
irradiation. However, in order to preserve image quality, a
cassette and plate should be scanned no later than 2 hours after
exposure.
CAUTION:
Automatic Exposure Control device may cause overexposure
if they are positioned underneath the cassette. Make sure
that the automatic exposure control device is placed above
the cassette.
CAUTION:
The image plate causes a specific X-ray scattering. This
influences the response of the exposure control device.
Automatic Exposure Control device may give wrong
response. Recalibrate the X-ray device for use with MD 4.xT
and MM3.xT cassettes to compensate for this effect
2387E EN 20180416 1238