Scenario Cal A001 - Image Quality Full Calibration Process; From Scratch - GE Senographe DS Manual

GE Healthcare
Revision 1

Scenario CAL A001 - Image Quality Full Calibration Process

from Scratch

1 CONTEXT
• 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.
2 STEERING GUIDE
Calibrations - Checks
Gantry
Compression Force Sensor
Compression Thickness
If Compression Thickness not OK, redo calibrations from Compression Force Sensor
Acquisition Image Chain
Bias Calibration
Heating Current Calibration
Tube mA Measurement
kV Scale Factor
mAs X-Ray Calibration
Tube Tilt Calibration
Collimator Calibration
Collimation Check
Bad Pixel Calibration
Gain calibration
flat field tests
Conversion Factor
Half Value Layer
AOP: Automatic Optimization of Parameters
AOP Calibration
mAs non linearity
AOP/SNR Check
If AOP/SNR Test not OK, redo all calibrations from AOP Calibration
SC-CAL-A-001.fm
Service Information and Procedures Class A 2385072-16-8EN
Scenario CAL A001 - Image Quality Full Calibration Process from Scratch
Job Card CAL A048 - Calibration of Compression Force Sensor on page
1709
Job Card CAL A050 - Compression Thickness Calibration on page 1721
Job Card CAL A003 - X-Ray Tube Focal Bias Voltage Scale Factor on
page 1655
Job Card CAL A001 - Heater Current Scale Factor on page 1649
Job Card CAL A009 - X-Ray Tube mA Measurement on page 1663
Job Card CAL A011 - Calibration of kV Scale Factor on page 1667
Job Card CAL A012 - X-Ray Tube Heater Current on page 1673
Job Card CAL A027 - Tube Tilt Calibration on page 1681
Job Card CAL A029 - Collimator Format Calibration on page 1683
Job Card ELE A028 - Collimation Checks on page 679
If Collimation Check not OK, redo Collimator Calibration
Job Card CAL A041 - Bad Pixel Calibration on page 1693
Job Card CAL A043 - Detector Gain Calibration on page 1697
Job Card ELE A032 – IQ Tools Flat Field Test on page 699
If IQ Test(s) not OK, redo all calibrations from Bad Pixel.
Job Card CAL A045 - Conversion Factor Measurement on page 1701
Job Card CAL A046 - Half-Value Layer Measurement on page 1703
Use the same dosimeter as in CAL A045
Job Card CAL A051 - AOP Calibration on page 1723
Job Card CAL A053 - mAs Non-linearity Calibration on page 1725
Job Card ELE A038 - AOP Mode and SNR Check on page 707
Job Card
Page no. 819
Senographe DS
Chapter 9
Chapter 9