Progeny I7016, Руководство пользователя

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Specifications JB-70
19
Measurement Bias Each exposure is preceded by a filament warm up time of about 0.175 seconds.
During this time, a low level of radiation is produced. The peak tube potential
varies during the filament warm up from approximately 60 to 80 kVp. Although
the amount of radiation produced during this time is small, it is useful and
contributes to forming the image on the film.
When the exposure time starts, the first several x-ray pulses will be high kVp
(about 80), low mA (about 2), and will settle out to 70 kVp and 8 mA (nominal)
after 5-10 pulses.
Tube Rating Charts
Anode Cooling Curve
0 1 2 3 4 5 6
7 8 9 10
Time in Minutes
T
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U.
3000
Tubehead Cooling Curve
0
10
20
30
40
50
60
70
80
90
100
Time in Minutes
S
to
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H
e
a
t
(t
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s
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)
200 100 50 25