Fluke Biomedical 35080B - Manual (Page 27)

Cadmium K-edge Mammo Filter Pack Option (37355)
Operating Instructions
5
5-5
Figure 5-4. DC Mammographic Generator Input Waveforms
Figure 5-5. The Model 35080B kVp Divider Output Waveforms with the Cadmium K-edge Mammo
Filter Pack (37355) (DC mammographic Generator)
Example 2: Single Phase Mammographic Generator
Figures 5-6 and 5-7 show the input and output waveform obtained from exposures taken at 28 kVp.
Since it can be seen from Figure 6-6 that the kVp falls below the zero level of 27 kVp, the need to
make several exposures while varying the kVp as in steps 3 and 4 is negated. The difference
between the baseline and peak levels can be obtained from the single trace in Figure 6-7. This
difference is measured to be 0.100 V, and thus the kVp is calculated as follows:
kVp = 27.0 +[10*0.100)] = 28.0.
Milliseconds
Outp
ut Volts
Cadmium K-edge Mammo Filter Pack (37355)
DC Generator 24 kV, 26 kV, 38 kV