)?
D
The generator can supply a maximum of 100 W to the tube.
This example represents one 30 kV/200mAs exposure each minute.
2–1–6
Line Conditioner Resonance Frequency
D
20 kHz approx.
2–1–7
Generator Power (excluding tube)
D
5 kW maximum.
2–1–8
Maximum Tolerance of Displayed Constants (with and without AEC or AOP)
D
kV:
"
2% + M1+M1’
D
mAs:
"
5%
"
1 mAs + M4 + M4’
+$
, " ! " !
+ I
"
;D
"
M
9, H , ! # "#
+) I
"
5
"
M
9, H ,
+F I
5, " ! #
+)F I
5, " ! #
2–1–9
Measurement Conditions
D
kVp:
Connect a voltage divider such as the Machlett Dynalizer in
series with the x-ray tube and measure the voltage with an
oscilloscope,
D
mAs:
Use a waveform analyzer such as the Tektronic 7854, connected
in series with the x-ray tube. The oscilloscope receives a signal
proportional to the high voltage applied to the tube. The mAs
values are given by:
mAs =
ŕ
.
.
i dt
Where T1 is the time at which the high voltage reaches 75% of
its maximum value, and
T2 is the time at which the high voltage returns to 75% of the
maximum value.
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