Del Medical EPEX Omniflex IV, Service Manual

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EPEX/Omniflex IV System Service Manual
4-38 Adjustments and Calibration
Calibrating the DirectRay Detector
The DirectRay Detector should be calibrated weekly at the routine chest
orientation of 72 in. HSID. In addition, if the daily flat field exposure
procedure produces image tones that are not uniform or are otherwise
unsatisfactory, the DirectRay Detector should be calibrated.
To calibrate the DirectRay Detector :
Step Action
1 Ensure that the DirectRay Detector has been powered on for at least
one hour so that it has reached thermal equilibrium.
2 Ensure everyone is out of the X-ray room.
3 In the DirectRay Console application’s main window, close any
open studies and ensure that no patient is selected.
4 From the Admin menu, choose Calibrate .
The Calibration Test panel displays. This panel includes instructions
for how to set the technique settings and take exposures for the
calibration.
Note: Refer to the DirectRay Operator Console Service Manual for
specific images of the Calibration Test panel and other screens.