10 Specifications
76
GE Healthcare
86500-IMG rev 3
Collimator
Type
MGB 600
Filtration
0 mm Al
Electrical input
34 VAC (for half-step motors)
9-14 VDC (for 12 VDC lamp)
Lamp type
HLX (halogen), 12V, 50W
Radiation field
Maximum radiation field
24x30 cm
Attenuation equivalent
Bucky, cassette tunnel or
magnification tunnel
≤
0.25 mm Al (Total of all layers)
Anti-scatter grid
Line pairs
36 l/cm
Grid ratio
5:1
ROC Grid
Line pairs
36 l/cm
Grid ratio
equal to 6:1
Measurement criteria for exposure time
Exposure time
Consists of beginning and ending
points as measured by a
calibrated x-ray monitor at 70%
of the peak radiation waveform.
kV
The high voltage mean value
received after measurement with
a calibrated x-ray monitor.
mAs
The resistance value divided by
voltage. A calibrated x-ray
monitor measures the voltage
over feedback resistor and
provides a mAs value.
The
nominal x-ray voltage
39kV is obtained at highest tube current 50
mA.
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