P/N MAN-01964 Revision 001 79
DRAFT
Preview copy—Generated 7/9/2010
User Manual
Appendix A—Specifications
Imaging System Technical Information
5.5 X-ray Collimation
5.6 Light Field Indication
5.7 X-ray Generator
6.0 Imaging System Technical Information
6.1 Image Receptor
Collimation Fields
7.0 cm x 8.5 cm
10 cm x 10 cm
15 cm x 15 cm
18 cm x 24 cm
18 cm x 29 cm (Tomosynthesis option)
24 cm x 29 cm
Light Field to X-Ray Congruency Within 2% of SID
Type Constant Potential High Frequency Inverter
Rating 7.0 kW, maximum (isowatt), 200 mA at 35 kV
Electrical Power Capacity 9.0 kW maximum
kV Range 20 kV to 49 kV in 1 kV increments
kV accuracy ±2%, over range 20-49 kVp
mAs Range 3.0 mAs to 500 mAs
mAs Accuracy ±(10% + 0.2 mAs)
mA Range 10 mA to 200 mA, Large Focal Spot
10 mA to 50 mA, Small Focal Spot
Fluid Ingress No fluid from accidental spillage on the Image Receptor
may seep inside.
Deflection Does not exceed 1.0 mm at maximum compression.
Active Imaging Area
Not less than 23.3 cm by 28.5 cm (9.2 inches x 11.2 inches)
DQE (Conventional Mammography) Not less than 50% at 0.2 lp/mm
Not less than 15% at the Nyquist limit
DQE (Tomosynthesis option) Not less than 30% at 0.2 lp/mm
Not less than 15% at the Nyquist limit
Dynamic Range and Linearity Detector Subsystem response is linear with linearity of
0.999 over a dynamic range of 400:1 in x-ray exposure.
Uniformity
Detector Subsystem can correct pixel-to-pixel gain variations.
For conventional mammography procedures, the
uniformity of flat field image response of the detector shall
be no greater than 2% after gain calibration is applied over
an exposure range of 0.5 mR to 200 mR.
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