40X M Sensors
:
Potential
22 kV - 40 kV
Accuracy
0.5 kV for Mo/Mo
±1 kV for Hologic Selenia x-ray machines with W anode and Rh filter
Repeatability (COV of 10 150 ms exposures)
0.2kV for Mo/Mo
0.1kV for Hologic Selenia x-ray machines with W anode and Rh filter
Rotation (normal to source-detector line)
about sensor long axis: 0.5 kV for 6º
about sensor short axis: 0.5 kV for 5º
Alignment (tube anode-cathode vs sensor long axis)
0.5 kV for 10º
Long-term drift:
0.5 kV for 1 yr
Width accuracy (2 ms - 5 sec): 0.1% of value + 0.2 ms
Ripple Error (Displayed kVp):
0.5 kV for 10%, 0-to-peak, ripple < 4 kHz
Filtration
25 - 35
μ
m Mo
0.1kV/
μ
m Mo
28 - 40 kV
0.8 kV/mm Al
Reference conditions:
Temperature
21 - 23 C
Mo Anode, 30
μ
m Mo total filtration
Anode current
50 mA, <1% ripple
Focus - sensor distance
30 cm
Sensor long axis perpendicular to anode-cathode axis
Sensor plane normal to focus-sensor line
Width measured at 75% of kV waveform
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