AGFA XD 10 Series User Manual page 38

38 | DR Detector Calibration | Calibrating the DR Detector
2. Set the exposure parameters to the indicative value for the exposure level.
3. Make exposures as instructed by the DR Calibration Tool.
Calibration steps are performed for each mode (continuous fluo, pulsed
fluo, rad, rapid sequence) and different dose settings (kV, mAs or mA and
ms). Use the software console to set the values that are displayed on the
Calibration Tool and then press exposure button or pedal.
For each mode, exposures with 4 different doses settings are requested.
The images made at the first dose setting will be used to calculate the gain
calibration map.
The images made at the other dose settings will be combined to calculate
the defect calibration map. This calculation can take a long time, up to
several minutes!
The requested dose setting is specified in µGy and a suggestion is provided
on how to accomplish this by setting kV and mAs (or mA and ms). Note
that the suggested settings may not effectuate the requested dose: some
panels have a higher sensitivity, there may be temperature effects etc. The
DR Calibration Tool may instruct to increase or decrease the dose settings
to reach the required exposure level. After adjusting the dose setting, it
may be necessary to repeat previous exposures as well.
During calibration for static image mode, the DR Calibration Tool may
request to perform a rapid sequence exposure.
Do not initiate a next exposure before the DR Calibration Tool displays the
instruction. Initiating the exposure while the DR detector is not ready,
invalidates the calibration.
Do not wait longer than 3 minutes before initiating a next exposure when
the DR Calibration Tool instructs to do so. Delaying the exposure may
cause the DR Calibration Tool to require to be restarted.
The calibration may take up to two hours.
If there's not enough time to complete the whole calibration, after
finishing a mode the remaining modes can be skipped. Push the Skip
button for the remaining modes and finalize the calibration. Later on the
calibration can be started again. The initial uniformity check has to be
repeated, but the modes for which calibration was already performed, can
be skipped.
If the ECV check fails, repeat the calibration for that mode to make sure
that the result is not caused by an error made during the exposure
sequence. If the ECV check fails again, contact your local service
representative.
The calibration remain valid for 13 months.
0134I EN 20210924 1204