GE Senographe DS Manual page 1753

GE Healthcare
Revision 1
9-3 kVp measurements - Keithley 35080B KVp meter
Make a series of kVp measurements, as follows:
1. Set the X-ray field to the smallest size greater than the kVp meter measurement area shown on the
meter.
2. Switch on the meter.
3. Select manual exposure mode, and set the X-ray parameters to:
Mo track/Mo filter, 50 mAs, LF
4. Make exposures at the
Measured kVp
Focus mAs
0.3
0.3
0.3
0.3
5. For the check to be passed, each of the
Upper Lower Limits
and
6. If the check fails at any value, repeat the complete procedure.
7. If the repeated check fails again, kVp calibration is necessary. Perform the procedure described in
Job Card CAL A011 - Calibration of kV Scale Factor on page
JC-CHK-A-011.fm
Selected kVp
value shown on the meter.:
Selected
KVp (S)
50 26
50 28
50 30
50 32
.
Service Information and Procedures Class A 2385072-16-8EN
values shown in the table below. For each exposure note the
Measured Upper Limit
KVp (S+0.5 kV)
26.50
28.50
30.50
32.50
Measured kVp
values must lie between the specified
Page no. 1753
Job Card CHK A011 - Check kVp settings
Lower Limit
(S-0.5 kV) Pass/Fail
25.50
27.50
29.50
31.50
1667.
Senographe DS
Result
Chapter 9