GE Senographe DS Manual page 572

GE Healthcare
Revision 1
Job Card ELE A012 - X-ray Parameter Check
5. Protect the detector using 25 mm of acrylic.
6. Open New Patient in the Browser. Take five exposures at approximately 20 second intervals, incre-
menting the HV by 2 kV each time (i.e., 22 - 24 - 26 - 28 - 30 kV).
7. Take five more exposures at the same interval, leaving the HV set at 30 kV.
8. The X-ray tube current value displayed on the X-ray Console (I
must agree with the value read on the mAs meter (I
If I is not equal to I
display
Measurement on page
1673.
9. Take two exposures at 40 kV and 50 mAs at an interval of 30 seconds. No arcing must be detected.
If arcing is detected, perform the procedure given in
Warm-Up on page
10. Reconfigure the Senographe to 30 kV and 25 mAs. Take one exposure for each of the three follow-
ing focal spot/track combinations and check the expected X-ray tube current reading on the X-ray
Console display:
SMALL FOCAL SPOT/MO TRACK => I = 40 mA ±2 mA
SMALL FOCAL SPOT/RH TRACK => I = 35 mA ±2 mA
LARGE FOCAL SPOT/RH TRACK => I = 62 mA ±4 mA
11. Disconnect the mAs meter from the Senographe and reconnect the jumper on kV mA board 701-
PL1.
12. Verify kVp using a non-invasive kVp meter and, if needed, perform
of kV Scale Factor on page
Chapter 7
then perform the procedures of
measure
1663, followed by
1661.
1667. This step may be mandatory, when required by local regulations.
Service Information and Procedures Class A 2385072-16-8EN
) ± 5%.
measure
Job Card CAL A012 - X-Ray Tube Heater Current on page
Job Card CAL A007 - Automatic X-ray Tube
Page no. 572
) must be 100 mA ± 5 mA, and
display
Job Card CAL A009 - X-Ray Tube mA
Job Card CAL A011 - Calibration
Senographe DS
JC-ELE-A-012.fm