GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Scenario CAL A001 - Image Quality Full Calibration Process from Scratch
Page no. 819 Chapter 9
SC-CAL-A-001.fm
Scenario CAL A001 - Image Quality Full Calibration Process
from Scratch Chapter 9
1CONTEXT
• This Scenario shows the complete sequence of calibrations "from scratch" that is followed when inte-
grating the system in the manufacturing facilities before shipment.
• This calibration process is never performed completely on customer site.
• Aim of this Scenario: settings made during calibration procedures may interact with others. It may
therefore be necessary to carry out other procedures (calibrations or checks) after completing a cali-
bration procedure. These are specified as Post–Completion Requirements in the table below.
2STEERING GUIDE
Calibrations - Checks Job Card
Gantry
Compression Force Sensor Job Card CAL A048 - Calibration of Compression Force Sensor on page
1709
Compression Thickness Job Card CAL A050 - Compression Thickness Calibration on page 1721
If Compression Thickness not OK, redo calibrations from Compression Force Sensor
Acquisition Image Chain
Bias Calibration Job Card CAL A003 - X-Ray Tube Focal Bias Voltage Scale Factor on
page 1655
Heating Current Calibration Job Card CAL A001 - Heater Current Scale Factor on page 1649
Tube mA Measurement Job Card CAL A009 - X-Ray Tube mA Measurement on page 1663
kV Scale Factor Job Card CAL A011 - Calibration of kV Scale Factor on page 1667
mAs X-Ray Calibration Job Card CAL A012 - X-Ray Tube Heater Current on page 1673
Tube Tilt Calibration Job Card CAL A027 - Tube Tilt Calibration on page 1681
Collimator Calibration Job Card CAL A029 - Collimator Format Calibration on page 1683
Collimation Check Job Card ELE A028 - Collimation Checks on page 679
If Collimation Check not OK, redo Collimator Calibration
Bad Pixel Calibration Job Card CAL A041 - Bad Pixel Calibration on page 1693
Gain calibration Job Card CAL A043 - Detector Gain Calibration on page 1697
flat field tests Job Card ELE A032 – IQ Tools Flat Field Test on page 699
If IQ Test(s) not OK, redo all calibrations from Bad Pixel.
Conversion Factor Job Card CAL A045 - Conversion Factor Measurement on page 1701
Half Value Layer Job Card CAL A046 - Half-Value Layer Measurement on page 1703
Use the same dosimeter as in CAL A045
AOP: Automatic Optimization of Parameters
AOP Calibration Job Card CAL A051 - AOP Calibration on page 1723
mAs non linearity Job Card CAL A053 - mAs Non-linearity Calibration on page 1725
AOP/SNR Check Job Card ELE A038 - AOP Mode and SNR Check on page 707
If AOP/SNR Test not OK, redo all calibrations from AOP Calibration
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