Fluke Biomedical 8000 Victoreen - Manual (Page 77)

4
Troubleshooting
Waveforms-Partial kV Waveforms
4-15
In the
exposure
below, part of the kV waveform appears to disappear after an initial peak. This is because after the initial
peak, the radiation output drops below the level at which the NERO mAx can accurately reproduce the kV
waveform. This level is approximately 400 counts on the channel A radiation waveform.
kV Waveform
High Sensitivity
0
5
10
15
20
25
30
35
40
45
0 2 4 6 8 10 12 14
mSec
kV kV
kV Waveform
0
10
20
30
40
50
60
70
80
90
0 20 40 60 80 100 120 140 160 180
mSec
kV kV
Radiation Waveform
0
100
200
300
400
500
600
700
800
900
0 20 40 60 80 100 120 140 160
mSec
counts
Channel A
Channel B